Opinion for the court filed PER CURIAM.
Concurring opinion filed by Chief Judge MICHEL.
PER CURIAM.
John E. Voracek ("Voracek") appeals from the decision of the United States Court of Appeals for Veterans Claims ("Veterans Court") affirming the decision of the Board of Veterans' Appeals ("Board") denying his claim for an earlier effective date for his total disability based on post-traumatic stress disorder ("PTSD"). Voracek v. Principi, No. 00-1574, 2004 WL 1252955 (Vet.App. May 13, 2004). The appeal was submitted after oral argument on July 7, 2005. Because the Veterans Court correctly found that Voracek's Statement in Support of Claim ("SSC") was not "material" evidence under 38 C.F.R. § 3.156(b) filed in connection with his original claim, we conclude that Voracek is not entitled to reopen his original claim or to have an effective date of September 10, 1992 for his 100 percent disability rating for service connected PTSD. Accordingly, we affirm the decision of the Veterans Court.
I. BACKGROUND
Voracek served on active duty in the U.S. Marine Corps in Vietnam from September 1962 to October 1966. On September 10, 1992, Voracek filed a claim for disability compensation for service connected PTSD. In November 1992, he completed a Veterans Administration ("VA") social and industrial survey and related a history of Vietnam-related stressors as well as a difficult family life during childhood. In December 1992, Voracek was examined by a VA appointed doctor, who diagnosed him with mild PTSD. On March 30, 1993, the Oregon Department of Veterans Affairs Regional Office ("RO") awarded disability compensation to him at a ten percent rating effective as of September 10, 1992, the date of his original claim ("March 1993 Decision").
Slightly less than one year later, on March 24, 1994, Voracek informed the RO that his disability had "worsened." Specifically, his SSC was limited to the following paragraph:
I wish to re-open my claim for PTSD as I feel this condition has worsened. I go to the Portland [Veterans] Center for counseling on a weekly basis as to the problems I am having because of the PTSD. Please contact them for my counseling records to verify this.
Voracek did not submit any evidence accompanying his SSC.
In September 1994, Voracek provided the RO with an undated letter from a readjustment counseling therapist at the Portland Veteran's Center, reporting that Voracek had been in counseling since May 13, 1993 and had attended forty-one counseling sessions. The therapist stated that Voracek "is severely impaired in his ability to socialize, [and that] his ability to maintain employment is also severely impaired."
In December 1994, Voracek was given another survey, which revealed that Vora-cek was significantly impaired both socially and vocationally due to his anger and inability to cope with authority figures. In May 1995, the RO increased Voracek's disability rating from ten to thirty percent effective March 24, 1994 ("May 1995 Decision"). In June 1995, Voracek filed a Notice of Disagreement ("June 1995 NOD") following that decision to contest the effective date. In July 2000, after appealing to the Board, he eventually secured a 100 percent rating effective March 24, 1993. The Board reasoned that the record showed Voracek was unable to retain employment due to his PTSD as of one year before the date of his SSC, which Voracek filed on March 24, 1994. It declined, however, to assign an effective date of September 10, 1992, because the Board concluded that Voracek did not submit a timely NOD following the March 1993 Decision:
Although the veteran's [SSC] was filed within one year of the issuance of the March 1993 rating decision . this statement was a claim for increase and was not an NOD. This is illustrated by his statement specifying that he wanted his claim [reopened] because his PTSD had worsened. He did not specify that he wanted it [reopened] because he disagreed with the March 1993 rating deci- sion____ Thus, [Voracek's] March 24, 1994 statement was correctly found to be a claim for increase by the [VA].
Voracek appealed to the Veterans Court.
Veterans Court Proceedings
• Voracek claimed that the Board erred in failing to consider his SSC as • "new and material" 'evidence under 38 C.F.R. § 3.156(b) filed in connection with his original claim. ' Voracek, slip op. at 4. The Veterans Court observed that § 3.156(b)(1) allows new and material. evidence to be presented before.the expiration of the appeal period and provides that such evidence will be. considered as having been filed in. connection with the claim that was pending at the beginning of the appeal period. Id., slip op. at 7. Nevertheless, the Veterans Court found that Voracek's SSC alone, without any supporting evidence submitted within the one-year appeal period, did not qualify as new and material evidence. Id. It also found that the evidence Voracek eventually submitted in September 1994, six months after the one-year appeal period had expired, was not . relevant to his condition during the period from September 1992, the date he filed his original claim, to March 1993, the date he was awarded service connection. Id., slip op. at 8. The Veterans Court stated that even if such evidence had been presented during the one-year appeal period, it would not have been relevant to establishing an effective date before March 1993. Id. It agreed with the Board that Voracek's condition had worsened only after March 1993. Hence, the Veterans Court concluded that Voracek was not entitled to an effective date of September 1992 for his 100 percent disability rating for service connected PTSD. Id.
Voracek timely appealed. We have jurisdiction pursuant to 38 U.S.C. § 7292(c).
II. DISCUSSION
Our jurisdiction to review decisions of the Veterans Court is limited by statute. See 38 U.S.C. § 7292 (2000); Forshey v. Principi, 284 F.3d 1335, 1338 (Fed.Cir.2002) (en banc). We have "exclusive jurisdiction to review and decide any challenge to the validity of any statute or regulation or any interpretation thereof brought under [section 7292], and to interpret constitutional and statutory provisions, to the extent presented and necessary to a decision." 38 U.S.C. § 7292(c). We may not review findings of fact or the application of law to the facts, except to the extent that an appeal presents a constitutional issue. Id. § 7292(d)(2); Bustos v. West, 179 F.3d 1378, 1380 (Fed.Cir.1999).
We may set aside any regulation or any interpretation thereof (other than a determination as to a factual matter) relied upon in the decision of the Veterans Court only if we find it to be: "(1) arbitrary, capricious, an abuse of'discretion, or otherwise not in accordance with law; (2) contrary to constitutional right, power, privilege, or immunity; (3) in excess of statutory jurisdiction, authority, or limitations, or in violation of a statutory right; or (4) without observance of procedure required by law." 38 U.S.C. § 7292(d)(1).
Voracek argues that the Veterans Court erred in rejecting his SSC as "new and material" evidence under § 3.156(b) in connection with his original disability claim. He asserts that the Veterans Court misinterpreted § 3.156(b) and erroneously imposed an added requirement that "new and material" evidence must be something other than an applicant's own statement. Additionally, Voracek contends that the definition for "new and material", evidence contained.in § 3.156(a) is not applicable to § 3.156(b) because § 3.156(a) applies to situations where a final decision has been rendered, whereas § 3.156(b) involves.situ ations where the appeal period has not expired. Under his interpretation of the "new and material" evidence language of § 3.156(b), Voracek argues his SSC properly constituted "new and material" evidence because the RO had not previously considered his "worsened" condition, and because the severity of his disability was relevant to the rating assigned to him for compensation purposes. Voracek thus asserts that we should reverse the decision of the Veterans Court.
The government argues in response that we lack jurisdiction over Voracek's appeal because his challenge involves an application of law to the facts. Specifically, the government contends that Voracek is using the instant appeal to revisit whether his SSC was a new claim for an increased rate or to appeal his original claim via either an NOD or an election under § 3.156(b).
Alternatively, in the event that we conclude Voracek correctly characterized the issue as being one of law over which we have jurisdiction, the government refutes Voracek's contention that the Veterans Court imposed an added requirement of proof concerning what qualifies as "new and material" evidence. The government argues that the definition for the phrase "new and material" contained in § 3.156(a) applies to § 3.156(b) because similar terms used in different parts of the same statute or regulation are presumed to have the same meaning. The government maintains that the Veterans Court correctly applied the definition from § 3.156(a) and found simply that Voracek's statement that his condition "worsened" was not relevant to his level of disability in March 1993 when the RO rendered its March 1993 Decision.
Moreover, the government asserts that Voracek is attempting to collaterally attack the finality of the March 1993 Decision by creatively arguing that his SSC was "new and material" evidence filed in connection with his original claim. The government contends that a veteran nevertheless may challenge a final decision only by filing either a claim to reopen or a claim of clear and unmistakable error. The government points out that Voracek did not avail himself of either option here and that the present appeal correctly stems from Vora-cek's June 1995 NOD. Accordingly, the government asserts that we should affirm the decision of the Veterans Court.
At the outset, we disagree with the government that this court lacks jurisdiction over the instant appeal. Contrary to the government's contention that Vora-cek's claim involves the application of law to the facts of this case, his claim raises more than one legal question. The first is whether the Veterans Court misinterpreted § 3.156(b) to require proof other than an applicant's own statement. The second is whether the definitions of "new" and "material" contained in § 3.156(a) apply to § 3.156(b). The third is whether Vora-cek's SSC and evidence incorporated therein by reference qualify as "material" to Voracek's original claim. See Jones v. Derwinski, 1 Vet.App. 210, 213 (1991) (whether evidence is "new and material" under 38 C.F.R. § 3.156 is a question of law subject to de novo review). Therefore, we conclude that we have jurisdiction over Voracek's appeal.
We are not persuaded by Voracek's argument that the Veterans Court misinterpreted § 3.156(b) to require proof other than an applicant's own statement. The Veterans Court did not make any express statement regarding the type of evidence that must be presented to qualify as "new and material." The Veterans Court simply held that "Voracek's statement that his PTSD had worsened, without any supporting evidence submitted within the one-year period, did not require VA to consider his original claim again." Voracek, slip op. at 7. Voracek misunderstands this finding as a broad evidentiary requirement to be applied whenever a veteran seeks to submit new and material evidence relating to his disability claim. The Veterans Court, however, plainly intended to address only Vo-racek's case.
Regarding the correct interpretation- of the "new and material". evidence language found in § 3.156(b), we agree with the government that the definition for the phrase "new and material" contained in § 3.156(a) applies to § 3.156(b). These sections provide in pertinent part: .
(a) A claimant may reopen a finally adjudicated claim, by submitting new and material evidence. New evidence means existing evidence not previously submitted to agency decisionmakers. Material evidence means existing evidence that, by itself or when considered with previous evidence of record, relates to an unestablished fact necessary to substantiate the claim. New and material evidence can be neither cumulative nor redundant of the evidence of record at the time of the last prior final denial of the claim sought tó be reopened, and must raise a reasonable possibility of substantiating the claim.
(b) New and material evidence received prior to the expiration of the appeal period, . will be considered as having been filed in connection with the claim whieh was pending at the beginning of the appeal period.
38 C.F.R. § 3.156(a) & (b) (2001). We note that similar terms used in different parts of the same statute or regulation presumptively have the same meaning. See Gustafson v. Alloyd Co., 513 U.S. 561, 570, 115 S.Ct. 1061, 131 L.Ed.2d 1 (1995) (acknowledging that "identical words used in different parts of the same act are intended to have the same meaning" under the "normal rule of statutory construction" (quoting Dep't of Revenue of Or. v. ACF Indus., Inc., 510 U.S. 332, 342, 114 S.Ct. 843, 127 L.Ed.2d 165 (1994))): Voracek does not offer any authority to rebut this presumption. Rather, Voracek attempts to distinguish the two subsections based merely on the fact that they apply to two different periods of time. That § 3.156(a) pertains to claims finally adjudicated while § 3.156(b) pertains to claims for which the appeal period has not expired does not, however, differentiate the two subsections to the- point of rendering. the definition contained in § 3.156(a) inapplicable to § 3.156(b). Both subsections fall under the general heading "[n]éw and material evidence." Hence, although the history behind § 3.156 is silent regarding whether the definition found in paragraph (a) applies to paragraph (b), it is logical the terms "new" and "material" have the same meaning throughout the entire section. We thus apply the definitions from § 3.156(a) in deciding whether Voracek's SSC qualifies as "new" and "material" evidence.
To qualify as "material" evidence under the revised version of § 3.156(a), Voracek's SSC must be evidence that, by itself or when considered with previous evidence of record, relates to an unestablished fact necessary to substantiate Vora-cek's original claim for service connection disability. See 38 C.F.R. § 3.156(a). Vo-racek's single statement that his condition "worsened" does not, on its face, relate in any way to his condition during the pen-dency of his original claim or to any other unestablished fact necessary to substantiate his original claim. Therefore, we conclude that the Veterans Court did not, as a matter of law, err in concluding that Vora-cek's statement alone failed to meet the definition for materiality set forth in § 3.156(a).
Lastly, we need not reach the government's assertion that Voracek is attempting to improperly collaterally attack the finality of the March 1993 Decision because he cannot show that his SSC qualifies as "material" evidence filed in connection with his original claim.
III. CONCLUSION
Because the Veterans Court correctly found that Voracek's SSC does not qualify as "material" evidence under § 3.156(b) filed in connection with Voracek's original claim for service connection disability, we conclude that Voracek is not entitled to reopen his original claim. We agree with the Vetez-ans Court that Voracek's SSC constitutes a new claim for an increased rating based upon his "worsened" physical condition and that Voracek is not entitled to an effective date of September 10, 1992 for his 100 percent disability rating for sezwice connected PTSD. Accordingly, we affirm the decision of the Vetez'ans Court.
AFFIRMED
. The text of § 3.156(a) was amended on August 29, 2001, after the Board issued its decision but before the Veterans Court adjudicated Voracek's appeal. Before August 29, 2001, § 3.156(a) provided:
New and material evidence means evidence not previously submitted to agency deci-sionmakers which bears directly and substantially upon the specific matter under consideration, which is neither cumulative nor redundant, and which by itself or in connection with evidence previously assembled is so significant that it must be considered in order to fairly decide the merits of the claim.
38 C.F.R. § 3.156(a) (2000). Because the substance of the older version of § 3.156(a) is not significantly different from the text of the revised version, and because revised text was in effect at the time of Veterans Court decision directly on appeal here, we focus our analysis on revised text. Notably, neither the Board nor the Veterans Court considered this change in the language of § 3.156(a) in rendering their decisions.