Stеphen F. Yonek appeals from the decision of the Court of Appeals for Veterans Claims (“Veterans Court”) holding that diagnostic code (“DC”) 5201 only allows a single disability rating fоr each injured shoulder even though Yonek’s shoulder manifests limitation of motion with respect to both flexion and abduction. We affirm.
Background
Section 4.71a of the Department of Vetеrans Affairs (“VA”) regulations sets forth a schedule of disability ratings for injuries and diseases of the musculoskeletal system. See 38 C.F.R. § 4.71a. Within that schedule, diagnostic code 5201 prescribes ratings for limitatiоn of motion of the arm at the shoulder joint. See id., DC 5201. The code recognizes three levels of disability, based on the angle to which the veteran can raise his arm, and prescribes two possible ratings for each level of disability, corresponding to disability of the dominant (“Major”) or non-dominant (“Minor”) arm. Id. The disability ratings are expressed in terms of percentages, which “represent as far as can practicably be determined the average impairment in earning capacity resulting from” the corresponding disability. See 38 C.F.R. § 4.1. The code thus reads as follows:
5201 Arm, limitation of motion of: Major Minor
To 25° from side 40 [percent] 30 [percent]
Midway between side and shoulder level 30 [percent] 20 [percent]
At shoulder level 20 [percent] 20 [percent]
See § 4.71a, DC 5201.
Yonek served on active duty in the U.S. Navy from May 1973 to May 1977, and again from January 1991 to March 1992. In June 1991, Yonek suffered an aggrаvation of a preexisting injury to his right shoulder, which left the motion of his right arm permanently limited.
Following his discharge, Yonek filed a claim for disability compensation. The VA regional offiсe (“RO”) granted service connection for the right shoulder injury, assigning an initial rating of 10 percent. Over the next seventeen years, Yonek underwent at least fifteen examinations, aimed at establishing the extent to which the injury limited his range of motion. These examinations measured his range of motion in two different planes: flexion (elevation of the arm in a forward direction) and abduction (elevation of the arm outward from the side of the body). See generally 38 C.F.R. § 4.71 & Plate I (illustrating measurements of arm motion). The examinations gave widely divergent results, finding a rаnge of motion of anywhere between 80 and 180 degrees in the flexion plane and 60 and 180 degrees in the abduction plane. In September 1999, the RO increased its rating of Yonek’s right shoulder disability to 20 percent, apparently concluding that the motion in his dominant arm was limited to a point at or below shoulder level but past the midpoint be *1358 tween the side аnd the shoulder—that is, between 45 and 90 degrees.
Yonek appealed to the Board of Veterans’ Appeals (“Board”), which denied him a rating in excess of 20 percent fоr his right shoulder disability. See In re Yonek, No. 03-13 844, slip op. at 14-15 (Bd.Vet. App. June 21, 2010).
Yonek then appealed the Board’s decision to the Veterans Court, where he argued that he was entitled to sepаrate ratings under diagnostic code 5201 for limitation of motion of his right arm in the flexion and abduction planes. The Veterans Court rejected his argument, concluding that diagnostic сode 5201 only allows a single rating for limitation of motion, and that the plane in which the limitation of motion manifests itself is irrelevant.
See Yonek v. Shinseki,
No. 10-3320, slip op. at 3,
Yonek appealed to this court. Our jurisdiction in this сase is governed by 38 U.S.C. § 7292. We review the Veterans Court’s legal determinations de novo.
See King v. Shinseki,
Discussion
The plain language of section 4.71a confirms that a veteran is only entitled to a single disability rating under diagnostic code 5201 for each arm that suffers from limited motion at the shoulder joint. The diagnostic code does not provide separate ratings for limitation оf motion in the flex-ion and abduction planes, but rather is addressed generically to “limitation of motion of’ the arm. See 38 C.F.R. § 4.71a, DC 5201. Yonek indeed admits that “[t]he text of [diagnostic code] 5201, viewed in isolation, ... does not explicitly provide for separate ratings,” but argues that “when viewed from within the context of the regulatory schedule, the regulatory schedule shоws an intent to provide for separate ratings of these movements.” Reply Br. 1.
But nothing in the remainder of section 4.71a suggests that diagnostic code 5201 does not mean what it says. Significantly, parts of section 4.71a addressing joints other than the shoulder assign different codes to limitation of motion in different planes, or to limitation of motion in different directions within a single plane. With regard to the thigh, for example, diagnostic code 5253 assigns a rating of 20 percent to “[limitation of abduction [to] 10°,” while diagnostic code 5252 assigns ratings to “limitation of flexion” to various angles. Id., DCs 5252, 5253. For the knee, diagnostic code 5260 sets forth a schedule of ratings for “limitation of flexion,” while diagnostic code 5261 provides ratings for “limitation of extension.” Id., DCs 5260, 5261; see also Office of the Gen. Counsel, U.S. Dep’t of Veterans Affairs, Prec. Op. 9-2004, Rating Limitation of Flexion and Extension of the Leg (2004) (“General Counsel’s Rating Opinion ”) (holding that diagnostic codes 5260 and 5261 allow separate ratings for limitation of flexion and extension). Similarly, diagnostic codes 5206 and 5207 provide ratings for limitations of flexion and extension at the elbow joint, respectively. 38 C.F.R. § 4.71a, DCs 5206, 5207.
In light of section 4.71a’s assignment of separate diagnostic codes to limitation of motion in different planes (or in different directions within a single plane) of the thigh, knee, and elbow, its failure to
*1359
assign separate diagnostic codes to limitation of motion of the arm at the shoulder joint in the flexion and abduction planes is noteworthy. “Where [an agency] includes particular language in one section of a [regulation] but omits it in another ..., it is generally presumed that [the agency] acts intentionally and purposely in the disparate inclusion or exclusion.”
See Keene Corp. v. United States,
Nor does Plate I of section 4.71 suggest a different interpretation of diagnostic code 5201. Plate I “provide[s] a standardized description of ... joint motion meаsurement,” showing how the angles referred to in diagnostic code 5201 are to be measured.
See
38 C.F.R. § 4.71 & Plate I. The fact that Plate I illustrates separately how to measure motion оf the shoulder joint in the flexion and abduction planes merely demonstrates that limitation of motion in either plane may establish a com-pensable disability under diagnostic code 5201,
see Mariano v. Principi,
Yonek cites three additional sources of authority, but none of these sources supports his interpretation of diagnostic code 5201. Section 4.25 of the VA’s regulations provides that “[e]xcept as otherwise provided ..., the disabilities arising from a single disease entity ... are to be rated separately.” 38 C.F.R. § 4.25(b). In order to determine whether the veteran has manifested two separate “disabilities” within the meaning of section 4.25, howеver, we must look to the diagnostic code under which the veteran was diagnosed.
See Smith v. Nicholson,
In this case, the plain language of diagnostic code 5201 governs, and allows only a single rating for “limitation of motion of’ an arm.
See
§ 4.71a, DC 5201. Any alleged error in the code itself is beyond our scope of review.
See Wanner v. Principi,
We therefore affirm the decision of the Veterans Court holding that diagnostic сode 5201 only allows a single disability rating for each affected arm.
AFFIRMED
Costs
No costs.
Notes
. The Veterans Court also affirmed the Board’s decision that Yonek was only entitled to a 10 percent rating for a service-connected injury to his left shoulder. See id., slip op. at 2. To the extent that Yonek challenges this decision on appeal, we lack jurisdiction to review it, since it presents a purely factual issue. See 38 U.S.C. § 7292(d)(2).