Justice KIRSHBAUM
delivered the Opinion of the Court.
In Colby v. Progressive Casualty Insurance Company, 908 P.2d 1170 (Colo.App.1995), the court of appeals held that respondent, Progressive Casualty Insurance Company (Progressive), satisfied its obligations to pay rehabilitation benefits to petitioner, R.W. Colby (Colby), pursuant to section 10-4-706(l)(c), 4A C.R.S. (1987), of the Colorado Auto Accident Reparations Act (the Act) by paying Colby $50,000. In so doing, the court of appeals reversed the contrary summary judgment entered by the trial court. In Thompson v. Budget Rent-A-Car Systems, Inc., No. 94CV193 (Larimer County Dist. Ct., Oct. 14, 1994; Dec. 23, 1994; and Jan. 19, 1995), the trial court entered three partial summary judgments in favor of petitioner Carol Thompson and against respondent Budget Rent-A-Car Systems, Inc. (Budget), holding that Budget’s obligation to pay rehabilitation benefits to Thompson was not limited to $50,000 pursuant to section 10-4-706(l)(e). We granted Colby’s petition for certiorari review of the propriety of the court of appeals’ decision in Colby and also granted Thompson’s petition, filed pursuant to C.A.R.' 50, for pre-judgment certiorari review of the propriety of the trial court’s three judgments in Thompson to review the conflicting constructions of the provisions of section 10-4-706(l)(c) reflected therein. For the reasons stated below, we affirm the judgment of the court of appeals in Colby, reverse the judgments of the trial court in Thompson, and remand each ease to the appropriate trial court for further proceedings consistent with this opinion.
I
A
While traveling as a passenger in a vehicle driven by Thomas Sumners, Colby’s ward, Dean Colby, sustained a broken neck in a traffic accident on March 27, 1993, and is a quadriplegic. Sumners at that time owned a no-fault insurance policy issued by respondent Progressive that provided coverage for rehabilitation benefits in the amount of $50,-000.1 Progressive paid $50,000 in rehabilitation benefits for the benefit of Dean Colby [1300]*1300within one year of the accident, but refused to pay additional rehabilitation benefits for rehabilitation expenses incurred by Dean Colby.
Colby commenced this declaratory judgment action as guardian for Dean Colby seeking a determination that Progressive was responsible for the payment of rehabilitation costs in excess of $50,000 and incurred more than five years after the accident. Both parties submitted motions for summary judgment. The trial court granted Colby’s motion, denied Progressive’s motion, and entered judgment in favor of Colby. The court held that section 10-A-706(l)(c)(II) created a rebuttable presumption that an insurer who has paid $50,000 within five years has satisfied its statutory obligation.
Progressive appealed, and the court of appeals reversed the trial court’s judgment and remanded with directions to dismiss Colby’s complaint. The court of appeals held that Sumners’s insurance policy complied with the provisions of section 10 — 4—706(l)(c)(II) because it required Progressive to pay up to $50,000 in rehabilitation benefits.2 Colby, 908 P.2d at 1173. The court of appeals also concluded that the presumptive language contained in section 10-4 — 706(l)(c)(II) “applies to years only so that an insurer may be required to pay additional benefits if less than $50,000 has been paid within five years.” Colby, 908 P.2d at 1173.
B
While traveling as a passenger in a Budget rental car driven by Steve Miles, Thompson’s ward, Scott Hageman, was seriously injured on June 12, 1993, in a traffic accident. Hageman claimed benefits under a no-fault self-insurance policy maintained by Budget for the driver of the rental car.3 Budget paid $50,000 in rehabilitation benefits for the benefit of Hageman within one year of the accident, but refused to pay additional rehabilitation benefits for rehabilitation expenses incurred by Hageman.
Thompson commenced this action, individually and as guardian for Scott Hageman, against Budget, seeking, inter alia, a declaratory judgment that Budget is liable for Hageman’s future rehabilitation expenses. Both parties filed motions for partial summary judgment on the issue of whether Budget could be required to pay more than $50,-000 in rehabilitation benefits. The trial court granted Thompson’s motion and denied Budget’s motion, holding that section 10-4— 706(l)(c)(II) created a rebuttable presumption that an insurer’s obligation has been met when $50,000 has been paid. Thompson v. Budget Rent-A-Car Systems, Inc., No. 94CV193 (Larimer County Dist. Ct., July 11, 1994).
Based on this order, Thompson filed three motions for partial summary judgment for rehabilitation benefits exceeding $50,000. The trial court granted these motions, entered judgments against Budget totalling $140,963.62, and certified the judgments as final pursuant to C.R.C.P. 54(b). Budget satisfied the three judgments and appealed. Thompson then filed the petition for certiora-ri before judgment, pursuant to C.A.R. 50, with this court, which petition was granted.
II
The second issue contained in Thompson’s petition for certiorari requires a deter[1301]*1301mination of whether Budget failed to offer supplemental insurance coverage to Miles, as required by section 10-4-710, 4A C.R.S. (1992 Supp.). Thompson argues that Budget did not offer such supplemental insurance coverage to Miles and that, citing Passamano v. Travelers Indemnity Company, 882 P.2d 1312 (Colo.1994), Budget must therefore be found liable for all of Hageman’s rehabilitation expenses. This issue, however, was not addressed by the trial court in the proceedings we have agreed to review pursuant to C.A.R. 50.
This action was commenced on April 1, 1994. The complaint does not allege that Budget failed to offer supplemental insurance coverage to the driver. The complaint was accompanied by a motion for partial summary judgment, which motion does not assert that Budget failed to offer supplemental coverage to Miles.4 Budget opposed this motion5 and filed its own motion for partial summary judgment concerning the construction of section 10-4-706(l)(c)(II). Budget’s motion does not address the question of whether it offered Miles supplemental coverage.
The trial court granted Thompson’s motion and denied Budget’s motion on July 11,1994. The trial court’s order does not discuss the issue of whether Budget failed to offer supplementary coverage to Miles. Budget filed a motion for reconsideration, and Thompson opposed the motion; neither party raised the supplementary coverage issue, and the trial court’s October 14, 1994, order denying Budget’s motion for reconsideration does not address that issue.
Based on the July 11, 1994, order Thompson filed three motions for partial summary judgment for rehabilitation benefits exceeding $50,000. The trial court granted these motions in three separate orders dated October 14,1994; December 23, 1994; and January 19, 1995. Each order was certified as final, pursuant to C.R.C.P. 54(b), for purposes of this appeal.
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Justice KIRSHBAUM
delivered the Opinion of the Court.
In Colby v. Progressive Casualty Insurance Company, 908 P.2d 1170 (Colo.App.1995), the court of appeals held that respondent, Progressive Casualty Insurance Company (Progressive), satisfied its obligations to pay rehabilitation benefits to petitioner, R.W. Colby (Colby), pursuant to section 10-4-706(l)(c), 4A C.R.S. (1987), of the Colorado Auto Accident Reparations Act (the Act) by paying Colby $50,000. In so doing, the court of appeals reversed the contrary summary judgment entered by the trial court. In Thompson v. Budget Rent-A-Car Systems, Inc., No. 94CV193 (Larimer County Dist. Ct., Oct. 14, 1994; Dec. 23, 1994; and Jan. 19, 1995), the trial court entered three partial summary judgments in favor of petitioner Carol Thompson and against respondent Budget Rent-A-Car Systems, Inc. (Budget), holding that Budget’s obligation to pay rehabilitation benefits to Thompson was not limited to $50,000 pursuant to section 10-4-706(l)(e). We granted Colby’s petition for certiorari review of the propriety of the court of appeals’ decision in Colby and also granted Thompson’s petition, filed pursuant to C.A.R.' 50, for pre-judgment certiorari review of the propriety of the trial court’s three judgments in Thompson to review the conflicting constructions of the provisions of section 10-4-706(l)(c) reflected therein. For the reasons stated below, we affirm the judgment of the court of appeals in Colby, reverse the judgments of the trial court in Thompson, and remand each ease to the appropriate trial court for further proceedings consistent with this opinion.
I
A
While traveling as a passenger in a vehicle driven by Thomas Sumners, Colby’s ward, Dean Colby, sustained a broken neck in a traffic accident on March 27, 1993, and is a quadriplegic. Sumners at that time owned a no-fault insurance policy issued by respondent Progressive that provided coverage for rehabilitation benefits in the amount of $50,-000.1 Progressive paid $50,000 in rehabilitation benefits for the benefit of Dean Colby [1300]*1300within one year of the accident, but refused to pay additional rehabilitation benefits for rehabilitation expenses incurred by Dean Colby.
Colby commenced this declaratory judgment action as guardian for Dean Colby seeking a determination that Progressive was responsible for the payment of rehabilitation costs in excess of $50,000 and incurred more than five years after the accident. Both parties submitted motions for summary judgment. The trial court granted Colby’s motion, denied Progressive’s motion, and entered judgment in favor of Colby. The court held that section 10-A-706(l)(c)(II) created a rebuttable presumption that an insurer who has paid $50,000 within five years has satisfied its statutory obligation.
Progressive appealed, and the court of appeals reversed the trial court’s judgment and remanded with directions to dismiss Colby’s complaint. The court of appeals held that Sumners’s insurance policy complied with the provisions of section 10 — 4—706(l)(c)(II) because it required Progressive to pay up to $50,000 in rehabilitation benefits.2 Colby, 908 P.2d at 1173. The court of appeals also concluded that the presumptive language contained in section 10-4 — 706(l)(c)(II) “applies to years only so that an insurer may be required to pay additional benefits if less than $50,000 has been paid within five years.” Colby, 908 P.2d at 1173.
B
While traveling as a passenger in a Budget rental car driven by Steve Miles, Thompson’s ward, Scott Hageman, was seriously injured on June 12, 1993, in a traffic accident. Hageman claimed benefits under a no-fault self-insurance policy maintained by Budget for the driver of the rental car.3 Budget paid $50,000 in rehabilitation benefits for the benefit of Hageman within one year of the accident, but refused to pay additional rehabilitation benefits for rehabilitation expenses incurred by Hageman.
Thompson commenced this action, individually and as guardian for Scott Hageman, against Budget, seeking, inter alia, a declaratory judgment that Budget is liable for Hageman’s future rehabilitation expenses. Both parties filed motions for partial summary judgment on the issue of whether Budget could be required to pay more than $50,-000 in rehabilitation benefits. The trial court granted Thompson’s motion and denied Budget’s motion, holding that section 10-4— 706(l)(c)(II) created a rebuttable presumption that an insurer’s obligation has been met when $50,000 has been paid. Thompson v. Budget Rent-A-Car Systems, Inc., No. 94CV193 (Larimer County Dist. Ct., July 11, 1994).
Based on this order, Thompson filed three motions for partial summary judgment for rehabilitation benefits exceeding $50,000. The trial court granted these motions, entered judgments against Budget totalling $140,963.62, and certified the judgments as final pursuant to C.R.C.P. 54(b). Budget satisfied the three judgments and appealed. Thompson then filed the petition for certiora-ri before judgment, pursuant to C.A.R. 50, with this court, which petition was granted.
II
The second issue contained in Thompson’s petition for certiorari requires a deter[1301]*1301mination of whether Budget failed to offer supplemental insurance coverage to Miles, as required by section 10-4-710, 4A C.R.S. (1992 Supp.). Thompson argues that Budget did not offer such supplemental insurance coverage to Miles and that, citing Passamano v. Travelers Indemnity Company, 882 P.2d 1312 (Colo.1994), Budget must therefore be found liable for all of Hageman’s rehabilitation expenses. This issue, however, was not addressed by the trial court in the proceedings we have agreed to review pursuant to C.A.R. 50.
This action was commenced on April 1, 1994. The complaint does not allege that Budget failed to offer supplemental insurance coverage to the driver. The complaint was accompanied by a motion for partial summary judgment, which motion does not assert that Budget failed to offer supplemental coverage to Miles.4 Budget opposed this motion5 and filed its own motion for partial summary judgment concerning the construction of section 10-4-706(l)(c)(II). Budget’s motion does not address the question of whether it offered Miles supplemental coverage.
The trial court granted Thompson’s motion and denied Budget’s motion on July 11,1994. The trial court’s order does not discuss the issue of whether Budget failed to offer supplementary coverage to Miles. Budget filed a motion for reconsideration, and Thompson opposed the motion; neither party raised the supplementary coverage issue, and the trial court’s October 14, 1994, order denying Budget’s motion for reconsideration does not address that issue.
Based on the July 11, 1994, order Thompson filed three motions for partial summary judgment for rehabilitation benefits exceeding $50,000. The trial court granted these motions in three separate orders dated October 14,1994; December 23, 1994; and January 19, 1995. Each order was certified as final, pursuant to C.R.C.P. 54(b), for purposes of this appeal.
On November 20, 1994, Thompson filed a fourth motion for partial summary judgment. In this motion Thompson asserted that Budget is liable for all medical expenses, without time or dollar limitation, incurred by Hage-man because Budget failed to offer supplemental insurance coverage to Miles, as required by section 10-4-710, 4A C.R.S. (1992 Supp.). The record before us does not contain the trial court’s order resolving that motion.6
The record before us compels the conclusion that the second issue upon which we granted certiorari in Thompson was not addressed by the trial court in the orders underlying Budget’s appeal in this case. Issues not decided by the lower court may not be addressed for the first time on appeal. See Committee for Better Health Care for All Colo. Citizens v. Meyer, 830 P.2d 884, 888 (Colo.1992). Accordingly, we conclude that certiorari was improvidently granted on the issue of whether Budget offered Miles supplementary insurance, and, order that Thompson’s petition be denied with respect to that issue.
Ill
Both Colby and Thompson assert that they are entitled to additional rehabilitation benefits under the terms of the policies and the provision of section 10-4-706(l)(c)(II), 4A [1302]*1302C.R.S. (1987). They contend that section 10-4r-706(l)(c)(II) creates a rebuttable presumption that an insurer has satisfied its statutory obligation to pay such benefits when $50,000 has been expended within five years and that, if this presumption is overcome by evidence that the sum of $50,000 is insufficient to pay the cost of rehabilitation benefits, the insurer must pay all reasonable costs for rehabilitation without limitation. We do not agree with this argument.
In resolving whether section 10-4-706(l)(c)(II), 4A C.R.S. (1987), requires insurers to assume liability for rehabilitation benefits in excess of $50,000, we start with the statutory language. In construing statutory provisions, our obligation is to give full effect to the legislative intent. Conte v. Meyer, 882 P.2d 962, 965 (Colo.1994). If the legislative intent is immediately conveyed by the commonly understood and accepted meaning of the statutory language, we need look no further and must give effect to the statute as written. PDM Molding, Inc. v. Stanberg, 898 P.2d 542, 545 (Colo.1995). However, if the statutory language is ambiguous and therefore susceptible of alternate constructions, we must consider principles of statutory construction to ascertain the legislative intent. § 2-4-203(1), IB C.R.S. (1980); Aetna Casualty & Sur. Co. v. McMichael, 906 P.2d 92, 97 (Colo.1995); Griffin v. S.W. Devanney & Co., 775 P.2d 555, 559 (Colo.1989); see Krieg v. Prudential Property & Casualty Ins. Co., 686 P.2d 1331, 1335 (Colo.1984). For example, we may consider the textual context, Krieg, 686 P.2d at 1335; the statute’s legislative history; the state of the law prior to the legislative enactment, Charnes v. Boom, 766 P.2d 665, 667 (Colo.1988); the problem addressed by the legislation; and the relationship between the particular legislation and other relevant legislative provisions in an effort to discern the legislative intent. Id.; see Rowe v. People, 856 P.2d 486, 489 (Colo.1993); Schubert v. People, 698 P.2d 788, 793-94 (Colo.1985).
In 1993, when the accidents underlying these two eases occurred, section 10-4^-706(1) required an insurer to provide the following coverages:
(1) Subject to the limitations and exclusions authorized by this part 7, the minimum coverages required for compliance with this part 7 are as follows:
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(b) Compensation without regard to fault, up to a limit of fifty thousand dollars per person for any one accident, for payment of all reasonable and necessary expenses for medical ... services ... performed within five years after the accident for bodily injury arising out of the use or operation of a motor vehicle; ...
(c)(1)(A) Compensation without regard to fault for payment of the cost of rehabilitation procedures or treatment and rehabilitative occupational training necessary because of bodily injury arising out of the use or operation of a motor vehicle....
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(c)(II) An insurer obligated to provide direct benefits under this section shall be presumed to have complied with the provi- - sion for rehabilitation when the value of rehabilitation services or treatment provided under paragraph (c) of subsection (1) of this section shall have reached fifty thousand dollars within five years after an accident involving a motor vehicle.
§ 10-4^706(1), 4A C.R.S. (1987).
Petitioners construe this statutory language as creating a rebuttable presumption of compliance. ' Under petitioners’ construction, after the insurer has paid $50,000 within five years of the accident, an insured holding this minimum coverage policy may prove that he or she still requires further rehabilitation services and compel the insurer to pay all additional costs until rehabilitation services are no longer necessary. We believe that the result of petitioners’ construction is contrary to the legislative intent expressed by the language of section 10-4r-706(l)(c)(II) as reflected by the relevant legislative history.
One purpose of the Act is to “avoid inadequate compensation.” § 10-4-702, 4A [1303]*1303C.R.S. (1994). Construing section 10-4-706(l)(c)(II) to require insurers to provide unlimited rehabilitation benefits does far more than avoid inadequate compensation; it requires insurers to become guarantors of such benefits in amounts not susceptible to rational premium calculation. The Act was adopted in part for the purposes of encouraging lower insurance premiums and providing some measure of predictability to the rate-setting process. See Tate v. Industrial Claim Appeals Office, 815 P.2d 15, 21 (Colo.1991). The conflicts created between some purposes of the Act and the construction of section 10-4-706(l)(c)(II) proposed by petitioners justify consideration of available legislative history for clarification of the legislative intent.
A further reason exists to consult relevant legislative history. Petitioners’ construction of section 10-4-706(l)(c)(II) conflicts with section 10-4-710. Section 10-4-710 authorizes insurers to provide coverage “more extensive” than the required mínimums. § 10-4-710(1), 4A C.R.S. (1992 Supp.). This provision supports the insurers’ argument that the rehabilitation benefits coverage established by section 10-4-706(l)(c)(II) constitutes minimum coverage. If section 10-4-706(l)(c)(II) already requires an insurer to pay direct rehabilitation benefits in an unlimited amount, no more extensive coverage for such benefits could be provided.
Another construction of section 10-4-706(l)(c)(II) is possible which avoids these difficulties. The word “presume” means, inter alia, “to accept as true or credible without proof or before inquiry.” Webster’s Third New International Dictionary 1796 (1986). Persons who presume a fact have completed any inquiry and accept the fact as true. This construction of section 10-4-706(l)(c)(II), in which the word “presume” establishes a monetary cap, comports with the provisions of section 10-4 — 710 that contemplate a scenario in which more extensive coverage may be offered and purchased. Such construction is also consistent with several purposes of the Act and permits a harmonious reconciliation of the provisions of section 10-4-706(l)(c)(II) and section 10-4-710.
Legislative history provides guidance in construing ambiguous statutory language. § 2-4-203(1)(c), IB C.R.S. (1980); Aetna Casualty & Sur. Co. v. McMichael, 906 P.2d 92, 97 (Colo.1995). Progressive and Budget emphasize the legislative declaration accompanying the 1994 amendment to the Act, which declaration states that the rehabilitation benefits established by the Act were originally intended to be limited “in both time and amount.” Act of May 4, 1994, eh. 187, § 1, 1994 Colo. Sess. Laws 1066. Although this declaration of legislative intent is not controlling with respect to the intent of the legislature as it existed in 1973, it is of some assistance. See People v. Holland, 708 P.2d 119,121 (Colo.1985).
Other legislative history is more persuasive. The General Assembly first considered no-fault legislation in 1971 and 1972. It ultimately enacted House Bill 1027, the initial version of the Act in 1973. The relevant language concerning rehabilitation benefits was the same as it was when this case arose except that the amount referred to in the statute was $25,000, rather than $50,000. By 1973, thirteen states had enacted some form of no-fault legislation. 1 No-Fault and Uninsured Motorist Automobile Insurance, § 4.30 (1996).7 Of those states, six provided for rehabilitation benefits, either as a component of medical expenses or as a separate category.8 None of the statutes in the latter six [1304]*1304states contained language similar to the presumption language here considered; all of such statutes, except Michigan’s, established a cap on rehabilitation benefits.
When testifying in support of House Bill 1027 to a House committee in 1973, Representative Carl Gustafson, who sponsored the bill, stated that the proposed legislation would “provide rehabilitation benefits up to $25,000” and emphasized that such provision represented a change from the then current circumstance in which insurers did not have to offer any rehabilitation benefits to insureds. Hearings on H.B. 1027 Before the House Committee on Business Affairs & Labor, 49th Gen. Assembly, 1st Session (audio tape A, Jan. 26,1978). When presenting the bill to a Senate committee, Representative Gustafson stated that the no-fault bill was designed to increase the benefit level without increasing current premium rates. Hearings on H.B. 1027 Before the Senate Committee on Business Affairs & Labor, 49th Gen. Assembly, 1st Session (audio tape E, Feb. 21, 1973). While explaining the required benefit package, he described “$25,000 rehabilitation costs” as one of the benefits offered. Id. Later, while explaining that emotional injury is not a component of bodily injury for medical or' rehabilitation expenses, he made the following comment: “and that is limited to [pause] rehabilitation is $25,000 within five years.” Id. (audio tape F, Feb. 28, 1973).
Written material published in connection with the efforts to enact the initial no-fault statute also supports the conclusion that the General Assembly intended to adopt a specific dollar limitation in 1973. An annotated version of the original draft bill submitted to the General Assembly by the Colorado Legislative Council explained the provision requiring rehabilitative benefits as follows:9
Rehabilitation benefits. Would require coverage for rehabilitation procedures or treatment and training which meets the standards noted in the text. Rehabilitation benefits would be provided up to $25,-000 within a five year time period.
Committee on Automobile Insurance, Colorado Legislative Council Report to the Forty-Ninth Colorado General Assembly, Res. Pub. No. 190, 23-24 (1972).
This legislative history supports the insurers’ argument that the presumption language adopted by the General Assembly in 1973 was intended to create a monetary limitation on the then new requirement that some level of rehabilitation benefits must be included in insurance policies. Although the statutory language describing the provision for rehabilitation benefits differs from the language describing the provision for medical expenses, the sponsor of the bill considered the presumptive language to constitute a cap of $25,000 on the former. The contrary construction urged by Colby and Thompson renders the $25,000/five year language meaningless.
Finally, the construction of section 10-4-706(l)(c)(II) suggested by Colby and Thompson would place the section in conflict with the provisions' of section 10^á-710(2)(b). Section 10-4-710(2)(b), applicable to insurance policies providing more extensive coverage than the required minimum benefits, permits an insurer to offer a policy that provides unlimited coverages but caps the total amount of benefits at $200,000. Relevant legislative history indicates that from the initial adoption of this provision in 1973, when the amount in question was $100,000, section 10-4-710(2)(b) was designed to protect insurers wary of unlimited exposure. See Hearings on H.B. 1027 Before the House Committee on Business Affairs & Labor, 49th Gen. Assembly, 1st Session (audio tape B, Jan. 26, 1973).
While we have not previously addressed this issue directly, in resolving related issues [1305]*1305we have suggested that the rehabilitation benefit in section 10-4-706 is limited as to time and amount. See Sulzer v. Mid-Century Ins. Co., 794 P.2d 1006, 1009 (Colo.1990) (“This benefit is available for a period of five years after the accident and is limited to a total of $50,000.”); Krieg v. Prudential Property & Casualty Ins. Co., 686 P.2d 1331, 1333 (Colo.1984) (“minimum PIP benefits ... [include] compensation up to $25,000 for rehabilitative care and treatment rendered within five years after the accident”); Cingoranelli v. St. Paul Fire & Marine Ins. Co., 658 P.2d 863, 867 n. 5 (Colo.1983) (“up to $25,000 in rehabilitation benefits payable over a period of five years after the accident”). In view of the legislative history of the Act, the various purposes thereof, and the provisions of related sections of the Act, we conclude that section 10-4-706(l)(c), 4A C.R.S. (1987), was intended to require insurers to provide rehabilitation benefits coverage in a maximum amount of $50,000.
IV
For the foregoing reasons, we affirm the judgment of the court of appeals in Colby and reverse the judgments of the trial court in Thompson. Each case is remanded to the appropriate trial court for further proceedings consistent with this opinion.
SCOTT, J., dissents, and LOHR and HOBBS, JJ., join in the dissent.