OPINION OF THE COURT
SCIRICA, Circuit Judge.
Ispat/Inland, Inc. appeals a final decision of the Department of Labor’s Benefits Review Board awarding Lloyd L. Lentz’s claim under the Black Lung Benefits Act, 30 U.S.C. § 901
et seq.
(“BLBA”). After the administrative law judge awarded benefits in 2006, the Board vacated the ALJ’s decision in part and remanded for reconsideration of the proffered medical opinion testimony. The ALJ again awarded benefits on May 5, 2008, and, this time, the Board affirmed. Ispat/Inland, the mine operator responsible for paying benefits, moved unsuccessfully for reconsideration of the Board’s decision and then filed a timely appeal with this Court. We will affirm.
I.
Congress enacted BLBA to compensate miners who are totally disabled by pneumoconiosis, which the statute defines as “a chronic dust disease of the lung and its sequelae, including respiratory and pulmonary impairments, arising out of coal mine employment.” 30 U.S.C. §§ 901(a), 902(b). To recover benefits under BLBA, a claimant must demonstrate (1) he suffers from pneumoconiosis; (2) he is “totally disabled”; and (3) pneumoconiosis is a “substantial contributing cause” of his total disability.
See
20 C.F.R. §§ 718.201-204.
Under the statute, pneumoconiosis may be “clinical” or “legal.” The former label refers to the category of diseases recognized by the medical community as pneumoconiosis. 20 C.F.R. § 718.201(a)(1). The latter is defined as “any chronic lung disease or impairment ... arising out of coal mine employment” including, without limitation, “any chronic restrictive or obstructive pulmonary disease arising out of coal mine employment.” 20 C.F.R. § 718.201(a)(2). An obstructive pulmonary condition caused by coal dust exposure satisfies the definition of legal pneumoconiosis.
See id.; La-belle Processing Co. v. Swarrow,
72 F.3d 308, 315 (3d Cir.1995). Chronic bronchitis, along with emphysema and certain forms of asthma, is a species of chronic obstructive pulmonary disease. 65 Fed.Reg. 79939 (Dec. 20, 2000).
On appeal, Ispat/Inland contends the ALJ improperly created a presumption in favor of entitlement to benefits by discounting their medical opinion testimony to the effect that Lentz’s pulmonary obstruction was solely attributable to his extensive history of cigarette smoking and that the contribution of coal dust exposure to his condition was “clinically insignificant.” However, the ALJ, on remand, found Lentz to be suffering from both clinical and legal pneumoconiosis. Therefore, because we can affirm the award of benefits on grounds unrelated to this allegedly impermissible presumption, we need not conduct a detailed analysis of Ispat/Inland’s claim.
II.
In 2006, the ALJ awarded Lentz’s claim for benefits based on legal pneumoconiosis after assessing the competing medical testimony.
See
20 C.F.R. § 718.202(a)(4) (“A determination of the existence of pneumoconiosis may also be made if a physician, exercising sound medical judgment, notwithstanding a negative X-ray, finds that the miner suffers or suffered from pneumoconiosis as defined in § 718.201.... Such a finding shall be supported by a reasoned medical opinion.”). Although the ALJ found the x-ray evidence did not support a finding of clinical pneumoconiosis, he credited the testimony of Lentz’s medical witness, Dr. John T. Schaff, in concluding Lentz’s pulmonary condition arose out of his coal mine employment and thus qualified under the
statute and regulations as legal pneumoconiosis.
See
30 U.S.C. § 902(b); 20 C.F.R. § 718.201(a)(2). The ALJ discounted the opinion of the employer’s competing medical witness, Dr. Gregory J. Fino, as inconsistent with the regulations. Specifically, the ALJ found Dr. Fino erroneously believed Lentz had to establish the presence of clinical pneumoconiosis in order to qualify for recovery under BLBA. Additionally, the ALJ found Lentz had satisfied the other elements of entitlement: the parties stipulated to the existence of a totally disabling pulmonary impairment pursuant to 20 C.F.R. § 718.204(b), and Lentz successfully demonstrated pneumoconiosis was a substantial contributing cause of his disability.
The Board vacated the ALJ’s award and remanded for further consideration of the medical testimony. Notably, the Board wrote: “If the administrative law judge finds that claimant has met his burden under Section 718.202(a)(4), he must then weigh all of the evidence relevant to the existence of pneumoconiosis together to determine whether the presence of the disease has been established at Section 718.202(a).”
On remand, the ALJ again awarded benefits. Conceding Dr. Fino’s opinion was not contrary to the regulations, the ALJ nevertheless found it poorly reasoned and ill-substantiated. The ALJ opined that Dr. Fino had both confused the issues of disease causation (whether his pulmonary condition arose out of exposure to coal dust) and disability causation (whether pneumoconiosis contributed to his total disability) and had failed to offer a reasoned explanation for why coal dust exposure was not a factor in Lentz’s chronic bronchitis. More importantly, however, in heeding the Board’s instruction to reweigh all the evidence on the existence of pneumoconiosis, the ALJ reexamined the x-ray evidence and discovered he had made factual errors in reaching his initial decision.
See
20 C.F.R. § 718.202(a)(1) (“A chest X-ray conducted and classified in accordance with § 718.102 may form the basis for a finding of the existence of pneumoconiosis.... [Wjhere two or more X-ray reports are in conflict, in evaluating such X-ray reports consideration shall be given to the radiological qualifications of the physicians interpreting such X-rays.”).
Upon revisiting the x-ray evidence and reanalyzing the diverging medical opinions, the ALJ concluded Lentz “established the existence of both clinical and legal pneumoconiosis by a preponderance of the evidence.” As for disability causation, the ALJ found Dr.
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OPINION OF THE COURT
SCIRICA, Circuit Judge.
Ispat/Inland, Inc. appeals a final decision of the Department of Labor’s Benefits Review Board awarding Lloyd L. Lentz’s claim under the Black Lung Benefits Act, 30 U.S.C. § 901
et seq.
(“BLBA”). After the administrative law judge awarded benefits in 2006, the Board vacated the ALJ’s decision in part and remanded for reconsideration of the proffered medical opinion testimony. The ALJ again awarded benefits on May 5, 2008, and, this time, the Board affirmed. Ispat/Inland, the mine operator responsible for paying benefits, moved unsuccessfully for reconsideration of the Board’s decision and then filed a timely appeal with this Court. We will affirm.
I.
Congress enacted BLBA to compensate miners who are totally disabled by pneumoconiosis, which the statute defines as “a chronic dust disease of the lung and its sequelae, including respiratory and pulmonary impairments, arising out of coal mine employment.” 30 U.S.C. §§ 901(a), 902(b). To recover benefits under BLBA, a claimant must demonstrate (1) he suffers from pneumoconiosis; (2) he is “totally disabled”; and (3) pneumoconiosis is a “substantial contributing cause” of his total disability.
See
20 C.F.R. §§ 718.201-204.
Under the statute, pneumoconiosis may be “clinical” or “legal.” The former label refers to the category of diseases recognized by the medical community as pneumoconiosis. 20 C.F.R. § 718.201(a)(1). The latter is defined as “any chronic lung disease or impairment ... arising out of coal mine employment” including, without limitation, “any chronic restrictive or obstructive pulmonary disease arising out of coal mine employment.” 20 C.F.R. § 718.201(a)(2). An obstructive pulmonary condition caused by coal dust exposure satisfies the definition of legal pneumoconiosis.
See id.; La-belle Processing Co. v. Swarrow,
72 F.3d 308, 315 (3d Cir.1995). Chronic bronchitis, along with emphysema and certain forms of asthma, is a species of chronic obstructive pulmonary disease. 65 Fed.Reg. 79939 (Dec. 20, 2000).
On appeal, Ispat/Inland contends the ALJ improperly created a presumption in favor of entitlement to benefits by discounting their medical opinion testimony to the effect that Lentz’s pulmonary obstruction was solely attributable to his extensive history of cigarette smoking and that the contribution of coal dust exposure to his condition was “clinically insignificant.” However, the ALJ, on remand, found Lentz to be suffering from both clinical and legal pneumoconiosis. Therefore, because we can affirm the award of benefits on grounds unrelated to this allegedly impermissible presumption, we need not conduct a detailed analysis of Ispat/Inland’s claim.
II.
In 2006, the ALJ awarded Lentz’s claim for benefits based on legal pneumoconiosis after assessing the competing medical testimony.
See
20 C.F.R. § 718.202(a)(4) (“A determination of the existence of pneumoconiosis may also be made if a physician, exercising sound medical judgment, notwithstanding a negative X-ray, finds that the miner suffers or suffered from pneumoconiosis as defined in § 718.201.... Such a finding shall be supported by a reasoned medical opinion.”). Although the ALJ found the x-ray evidence did not support a finding of clinical pneumoconiosis, he credited the testimony of Lentz’s medical witness, Dr. John T. Schaff, in concluding Lentz’s pulmonary condition arose out of his coal mine employment and thus qualified under the
statute and regulations as legal pneumoconiosis.
See
30 U.S.C. § 902(b); 20 C.F.R. § 718.201(a)(2). The ALJ discounted the opinion of the employer’s competing medical witness, Dr. Gregory J. Fino, as inconsistent with the regulations. Specifically, the ALJ found Dr. Fino erroneously believed Lentz had to establish the presence of clinical pneumoconiosis in order to qualify for recovery under BLBA. Additionally, the ALJ found Lentz had satisfied the other elements of entitlement: the parties stipulated to the existence of a totally disabling pulmonary impairment pursuant to 20 C.F.R. § 718.204(b), and Lentz successfully demonstrated pneumoconiosis was a substantial contributing cause of his disability.
The Board vacated the ALJ’s award and remanded for further consideration of the medical testimony. Notably, the Board wrote: “If the administrative law judge finds that claimant has met his burden under Section 718.202(a)(4), he must then weigh all of the evidence relevant to the existence of pneumoconiosis together to determine whether the presence of the disease has been established at Section 718.202(a).”
On remand, the ALJ again awarded benefits. Conceding Dr. Fino’s opinion was not contrary to the regulations, the ALJ nevertheless found it poorly reasoned and ill-substantiated. The ALJ opined that Dr. Fino had both confused the issues of disease causation (whether his pulmonary condition arose out of exposure to coal dust) and disability causation (whether pneumoconiosis contributed to his total disability) and had failed to offer a reasoned explanation for why coal dust exposure was not a factor in Lentz’s chronic bronchitis. More importantly, however, in heeding the Board’s instruction to reweigh all the evidence on the existence of pneumoconiosis, the ALJ reexamined the x-ray evidence and discovered he had made factual errors in reaching his initial decision.
See
20 C.F.R. § 718.202(a)(1) (“A chest X-ray conducted and classified in accordance with § 718.102 may form the basis for a finding of the existence of pneumoconiosis.... [Wjhere two or more X-ray reports are in conflict, in evaluating such X-ray reports consideration shall be given to the radiological qualifications of the physicians interpreting such X-rays.”).
Upon revisiting the x-ray evidence and reanalyzing the diverging medical opinions, the ALJ concluded Lentz “established the existence of both clinical and legal pneumoconiosis by a preponderance of the evidence.” As for disability causation, the ALJ found Dr. Fino’s opinion unworthy of credence because it rested largely on the premise that the x-ray evidence was negative for pneumoconiosis.
Ispat/Inland again appealed to the Board, challenging the ALJ’s findings of legal pneumoconiosis and disability causation. On this occasion, the Board affirmed the award. It concluded the ALJ had acted in accordance with its instructions in reevaluating the evidence and determining Lentz had established both clinical and legal pneumoconiosis. Consequently, it found the ALJ acted within his discretion in according little weight to Dr. Fino’s opinion on the issue of disability causation because it conflicted with the ALJ’s finding on remand that the x-ray evidence evinced clinical pneumoconiosis.
Under BLBA, both clinical and legal pneumoconiosis are compensable forms of the disease; a miner need only prove the existence of one form to achieve eligibility for benefits. Before this Court, Ispat/Inland challenges exclusively the ALJ’s findings as to legal pneumoconiosis. However, the ALJ, upon review of the x-ray evidence on remand, found Lentz to be afflicted with clinical pneumoconiosis. The Board acknowledged the ALJ had, in adhering to the Board’s admonition to reconsider “all of the evidence relevant to the existence of pneumoconiosis, ... determined that clinical and legal pneumoconiosis had been established at Section 718.202(a).” Ispal/Inland did not contest this finding before the Board and has not raised the issue in its brief on appeal. Therefore, for our purposes, the finding of clinical pneumoconiosis is a settled matter.
See Balsavage v. Dir., OWCP,
295 F.3d 390, 395 (3d Cir.2002) (“If substantial evidence exists, we must affirm the ALJ’s interpretation of the evidence even if we might have interpreted the evidence differently in the first instance.”) (internal quotation omitted);
Penn Allegheny Coal Co. v. Mercatell,
878 F.2d 106, 110 (3d Cir. 1989) (declaring an issue waived if not presented to the Board on administrative appeal).
Lentz established each of the other elements of entitlement. Under the statute, a miner suffering from clinical pneumoconiosis who worked for ten or more years in coal-mine-related employment is entitled to a rebuttable presumption that his pneumoconiosis arose out of that employment. 20 C.F.R. § 718.203(b).
Ispat/Inland conceded Lentz was totally disabled due to a pulmonary condition. And the Board held the ALJ “permissibly accorded little weight to Dr. Fino’s opinion” on the issue of disability causation because it was predicated on the assumption that Lentz did not have clinical pneumoconiosis. By contrast, the ALJ found Dr. Schaffs opinion on disability causation “adequately reasoned” and concluded Lentz had satisfied his burden with regard to this issue.
The Board affirmed the ALJ’s finding “that the weight of the evidence of record was sufficient to establish the existence of pneumoconiosis at Section 718.202(a), and disability causation at Section 718.204(c).” Significantly, the Board did not differentiate between § 718.202(a)(1), which allows for a finding of the existence of pneumoconiosis based on positive xray reports, and § 718.202(a)(4), which allows for a claimant to satisfy his burden through medical opinion testimony even in the face of negative x-rays. The Board ordered the ALJ to reconsider all evidence relevant to pneumoconiosis, the ALJ revisited both the x-ray reports (which he concluded established clinical pneumoconiosis under § 718.202(a)(1)) and the testimony (which he concluded established legal pneumoconiosis under § 718.202(a)(4)), and the
Board affirmed the ALJ’s finding with regard to “the existence of pneumoconiosis at Section 718.202(a).”
Therefore, the Board found the ALJ acted appropriately in finding Lentz had satisfied each element of his claim, and we discern neither an error of law nor a deviation from the Board’s standard of review. Given Ispat/Inland’s cognizance of the ALJ’s revised stance on the weighting of the x-ray evidence and the Board’s acceptance of the ALJ’s findings, we are able to affirm the Board’s decision without pronouncing, in this particular case, on the propriety of the ALJ’s treatment of the competing medical testimony on the issue of legal pneumoconiosis.
See Lombardy,
355 F.3d at 213.
III.
For the foregoing reasons, we will deny the petition for review and affirm the order of the Benefits Review Board.