ICD-10 · PDGM grouping
S54 Injury of nerves at forearm level
All 54 codes in the S54 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
54
Can lead a claim
30
Cannot lead a claim
24
What CMS assigns to S54
30 of the 54 codes group to Musculoskeletal Rehabilitation; 24 are assigned no clinical group. None of the 54 is assigned a comorbidity subgroup. 30 of the 54 can lead a claim.
Every code in S54
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| S54.0 Injury of ulnar nerve at forearm level | ||||
| S54.00 Injury of ulnar nerve at forearm level, unspecified arm | ||||
| S54.00XA | Injury of ulnar nerve at forearm level, unspecified arm, initial encounterCMS: Injury of ulnar nerve at forearm level, unsp arm, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.00XD | Injury of ulnar nerve at forearm level, unspecified arm, subsequent encounterCMS: Injury of ulnar nerve at forearm level, unsp arm, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.00XS | Injury of ulnar nerve at forearm level, unspecified arm, sequelaCMS: Injury of ulnar nerve at forearm level, unsp arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.01 Injury of ulnar nerve at forearm level, right arm | ||||
| S54.01XA | Injury of ulnar nerve at forearm level, right arm, initial encounterCMS: Injury of ulnar nerve at forearm level, right arm, init | Can lead a claim | E | None |
| S54.01XD | Injury of ulnar nerve at forearm level, right arm, subsequent encounterCMS: Injury of ulnar nerve at forearm level, right arm, subs | Can lead a claim | E | None |
| S54.01XS | Injury of ulnar nerve at forearm level, right arm, sequela | Can lead a claim | E | None |
| S54.02 Injury of ulnar nerve at forearm level, left arm | ||||
| S54.02XA | Injury of ulnar nerve at forearm level, left arm, initial encounterCMS: Injury of ulnar nerve at forearm level, left arm, init | Can lead a claim | E | None |
| S54.02XD | Injury of ulnar nerve at forearm level, left arm, subsequent encounterCMS: Injury of ulnar nerve at forearm level, left arm, subs | Can lead a claim | E | None |
| S54.02XS | Injury of ulnar nerve at forearm level, left arm, sequela | Can lead a claim | E | None |
| S54.1 Injury of median nerve at forearm level | ||||
| S54.10 Injury of median nerve at forearm level, unspecified arm | ||||
| S54.10XA | Injury of median nerve at forearm level, unspecified arm, initial encounterCMS: Injury of median nerve at forearm level, unsp arm, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.10XD | Injury of median nerve at forearm level, unspecified arm, subsequent encounterCMS: Injury of median nerve at forearm level, unsp arm, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.10XS | Injury of median nerve at forearm level, unspecified arm, sequelaCMS: Injury of median nerve at forearm level, unsp arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.11 Injury of median nerve at forearm level, right arm | ||||
| S54.11XA | Injury of median nerve at forearm level, right arm, initial encounterCMS: Injury of median nerve at forearm level, right arm, init | Can lead a claim | E | None |
| S54.11XD | Injury of median nerve at forearm level, right arm, subsequent encounterCMS: Injury of median nerve at forearm level, right arm, subs | Can lead a claim | E | None |
| S54.11XS | Injury of median nerve at forearm level, right arm, sequela | Can lead a claim | E | None |
| S54.12 Injury of median nerve at forearm level, left arm | ||||
| S54.12XA | Injury of median nerve at forearm level, left arm, initial encounterCMS: Injury of median nerve at forearm level, left arm, init | Can lead a claim | E | None |
| S54.12XD | Injury of median nerve at forearm level, left arm, subsequent encounterCMS: Injury of median nerve at forearm level, left arm, subs | Can lead a claim | E | None |
| S54.12XS | Injury of median nerve at forearm level, left arm, sequela | Can lead a claim | E | None |
| S54.2 Injury of radial nerve at forearm level | ||||
| S54.20 Injury of radial nerve at forearm level, unspecified arm | ||||
| S54.20XA | Injury of radial nerve at forearm level, unspecified arm, initial encounterCMS: Injury of radial nerve at forearm level, unsp arm, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.20XD | Injury of radial nerve at forearm level, unspecified arm, subsequent encounterCMS: Injury of radial nerve at forearm level, unsp arm, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.20XS | Injury of radial nerve at forearm level, unspecified arm, sequelaCMS: Injury of radial nerve at forearm level, unsp arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.21 Injury of radial nerve at forearm level, right arm | ||||
| S54.21XA | Injury of radial nerve at forearm level, right arm, initial encounterCMS: Injury of radial nerve at forearm level, right arm, init | Can lead a claim | E | None |
| S54.21XD | Injury of radial nerve at forearm level, right arm, subsequent encounterCMS: Injury of radial nerve at forearm level, right arm, subs | Can lead a claim | E | None |
| S54.21XS | Injury of radial nerve at forearm level, right arm, sequela | Can lead a claim | E | None |
| S54.22 Injury of radial nerve at forearm level, left arm | ||||
| S54.22XA | Injury of radial nerve at forearm level, left arm, initial encounterCMS: Injury of radial nerve at forearm level, left arm, init | Can lead a claim | E | None |
| S54.22XD | Injury of radial nerve at forearm level, left arm, subsequent encounterCMS: Injury of radial nerve at forearm level, left arm, subs | Can lead a claim | E | None |
| S54.22XS | Injury of radial nerve at forearm level, left arm, sequela | Can lead a claim | E | None |
| S54.3 Injury of cutaneous sensory nerve at forearm level | ||||
| S54.30 Injury of cutaneous sensory nerve at forearm level, unspecified arm | ||||
| S54.30XA | Injury of cutaneous sensory nerve at forearm level, unspecified arm, initial encounterCMS: Injury of cutan sensory nerve at forarm lv, unsp arm, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.30XD | Injury of cutaneous sensory nerve at forearm level, unspecified arm, subsequent encounterCMS: Injury of cutan sensory nerve at forarm lv, unsp arm, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.30XS | Injury of cutaneous sensory nerve at forearm level, unspecified arm, sequelaCMS: Inj cutan sensory nerve at forarm lv, unsp arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.31 Injury of cutaneous sensory nerve at forearm level, right arm | ||||
| S54.31XA | Injury of cutaneous sensory nerve at forearm level, right arm, initial encounterCMS: Injury of cutan sensory nerve at forarm lv, right arm, init | Can lead a claim | E | None |
| S54.31XD | Injury of cutaneous sensory nerve at forearm level, right arm, subsequent encounterCMS: Injury of cutan sensory nerve at forarm lv, right arm, subs | Can lead a claim | E | None |
| S54.31XS | Injury of cutaneous sensory nerve at forearm level, right arm, sequelaCMS: Inj cutan sensory nerve at forarm lv, right arm, sequela | Can lead a claim | E | None |
| S54.32 Injury of cutaneous sensory nerve at forearm level, left arm | ||||
| S54.32XA | Injury of cutaneous sensory nerve at forearm level, left arm, initial encounterCMS: Injury of cutan sensory nerve at forarm lv, left arm, init | Can lead a claim | E | None |
| S54.32XD | Injury of cutaneous sensory nerve at forearm level, left arm, subsequent encounterCMS: Injury of cutan sensory nerve at forarm lv, left arm, subs | Can lead a claim | E | None |
| S54.32XS | Injury of cutaneous sensory nerve at forearm level, left arm, sequelaCMS: Inj cutan sensory nerve at forarm lv, left arm, sequela | Can lead a claim | E | None |
| S54.8 Injury of other nerves at forearm level | ||||
| S54.8X Injury of other nerves at forearm level | ||||
| S54.8X1 Injury of other nerves at forearm level, right arm | ||||
| S54.8X1A | Injury of other nerves at forearm level, right arm, initial encounterCMS: Injury of other nerves at forearm level, right arm, init | Can lead a claim | E | None |
| S54.8X1D | Injury of other nerves at forearm level, right arm, subsequent encounterCMS: Injury of other nerves at forearm level, right arm, subs | Can lead a claim | E | None |
| S54.8X1S | Injury of other nerves at forearm level, right arm, sequela | Can lead a claim | E | None |
| S54.8X2 Injury of other nerves at forearm level, left arm | ||||
| S54.8X2A | Injury of other nerves at forearm level, left arm, initial encounterCMS: Injury of other nerves at forearm level, left arm, init | Can lead a claim | E | None |
| S54.8X2D | Injury of other nerves at forearm level, left arm, subsequent encounterCMS: Injury of other nerves at forearm level, left arm, subs | Can lead a claim | E | None |
| S54.8X2S | Injury of other nerves at forearm level, left arm, sequela | Can lead a claim | E | None |
| S54.8X9 Injury of other nerves at forearm level, unspecified arm | ||||
| S54.8X9A | Injury of other nerves at forearm level, unspecified arm, initial encounterCMS: Injury of other nerves at forarm lv, unspecified arm, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.8X9D | Injury of other nerves at forearm level, unspecified arm, subsequent encounterCMS: Injury of other nerves at forarm lv, unspecified arm, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.8X9S | Injury of other nerves at forearm level, unspecified arm, sequelaCMS: Injury of other nerves at forarm lv, unsp arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.9 Injury of unspecified nerve at forearm level | ||||
| S54.90 Injury of unspecified nerve at forearm level, unspecified arm | ||||
| S54.90XA | Injury of unspecified nerve at forearm level, unspecified arm, initial encounterCMS: Injury of unsp nerve at forearm level, unsp arm, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.90XD | Injury of unspecified nerve at forearm level, unspecified arm, subsequent encounterCMS: Injury of unsp nerve at forearm level, unsp arm, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.90XS | Injury of unspecified nerve at forearm level, unspecified arm, sequelaCMS: Injury of unsp nerve at forearm level, unsp arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.91 Injury of unspecified nerve at forearm level, right arm | ||||
| S54.91XA | Injury of unspecified nerve at forearm level, right arm, initial encounterCMS: Injury of unsp nerve at forearm level, right arm, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.91XD | Injury of unspecified nerve at forearm level, right arm, subsequent encounterCMS: Injury of unsp nerve at forearm level, right arm, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.91XS | Injury of unspecified nerve at forearm level, right arm, sequelaCMS: Injury of unsp nerve at forearm level, right arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.92 Injury of unspecified nerve at forearm level, left arm | ||||
| S54.92XA | Injury of unspecified nerve at forearm level, left arm, initial encounterCMS: Injury of unsp nerve at forearm level, left arm, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.92XD | Injury of unspecified nerve at forearm level, left arm, subsequent encounterCMS: Injury of unsp nerve at forearm level, left arm, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| S54.92XS | Injury of unspecified nerve at forearm level, left arm, sequelaCMS: Injury of unsp nerve at forearm level, left arm, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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