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ICD-10/S54

S54 ICD-10-CM Code: Injury of nerves at forearm level

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Injury of nerves at forearm level is a non-billable ICD-10-CM category code (S54). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S54 in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • injury of nerves at wrist and hand level (S64.-)
  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of wrist and hand (S60-S69)
  • insect bite or sting, venomous (T63.4)

Code Also

Additional codes that may be required to fully describe the encounter.

  • any associated open wound (S51.-)

Frequently Asked Questions (FAQ) & Clinical Guidance

Can S54 be billed directly?

No. S54 (Injury of nerves at forearm level) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does S54 require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S54; A: initial encounter; D: subsequent encounter; S: sequela.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S54 in its code family, with their registry titles.

  • 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 encounter
  • S54.00XD — Injury of ulnar nerve at forearm level, unspecified arm, subsequent encounter
  • S54.00XS — Injury of ulnar nerve at forearm level, unspecified arm, sequela
  • S54.01 — Injury of ulnar nerve at forearm level, right arm
  • S54.01XA — Injury of ulnar nerve at forearm level, right arm, initial encounter
  • S54.01XD — Injury of ulnar nerve at forearm level, right arm, subsequent encounter
  • S54.01XS — Injury of ulnar nerve at forearm level, right arm, sequela
  • S54.02 — Injury of ulnar nerve at forearm level, left arm
  • S54.02XA — Injury of ulnar nerve at forearm level, left arm, initial encounter
  • S54.02XD — Injury of ulnar nerve at forearm level, left arm, subsequent encounter
  • S54.02XS — Injury of ulnar nerve at forearm level, left arm, sequela
  • 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 encounter
  • S54.10XD — Injury of median nerve at forearm level, unspecified arm, subsequent encounter
  • S54.10XS — Injury of median nerve at forearm level, unspecified arm, sequela
  • S54.11 — Injury of median nerve at forearm level, right arm
  • S54.11XA — Injury of median nerve at forearm level, right arm, initial encounter
  • S54.11XD — Injury of median nerve at forearm level, right arm, subsequent encounter
  • S54.11XS — Injury of median nerve at forearm level, right arm, sequela
  • S54.12 — Injury of median nerve at forearm level, left arm
  • S54.12XA — Injury of median nerve at forearm level, left arm, initial encounter
  • S54.12XD — Injury of median nerve at forearm level, left arm, subsequent encounter
  • S54.12XS — Injury of median nerve at forearm level, left arm, sequela
  • 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 encounter
  • S54.20XD — Injury of radial nerve at forearm level, unspecified arm, subsequent encounter
  • S54.20XS — Injury of radial nerve at forearm level, unspecified arm, sequela
  • S54.21 — Injury of radial nerve at forearm level, right arm
  • S54.21XA — Injury of radial nerve at forearm level, right arm, initial encounter
  • S54.21XD — Injury of radial nerve at forearm level, right arm, subsequent encounter
  • S54.21XS — Injury of radial nerve at forearm level, right arm, sequela
  • S54.22 — Injury of radial nerve at forearm level, left arm
  • S54.22XA — Injury of radial nerve at forearm level, left arm, initial encounter
  • S54.22XD — Injury of radial nerve at forearm level, left arm, subsequent encounter
  • S54.22XS — Injury of radial nerve at forearm level, left arm, sequela
  • 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 encounter
  • S54.30XD — Injury of cutaneous sensory nerve at forearm level, unspecified arm, subsequent encounter
  • S54.30XS — Injury of cutaneous sensory nerve at forearm level, unspecified arm, sequela
  • 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 encounter
  • S54.31XD — Injury of cutaneous sensory nerve at forearm level, right arm, subsequent encounter
  • S54.31XS — Injury of cutaneous sensory nerve at forearm level, right arm, sequela
  • 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 encounter
  • S54.32XD — Injury of cutaneous sensory nerve at forearm level, left arm, subsequent encounter
  • S54.32XS — Injury of cutaneous sensory nerve at forearm level, left arm, sequela
  • 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 encounter
  • S54.8X1D — Injury of other nerves at forearm level, right arm, subsequent encounter
  • S54.8X1S — Injury of other nerves at forearm level, right arm, sequela
  • S54.8X2 — Injury of other nerves at forearm level, left arm
  • S54.8X2A — Injury of other nerves at forearm level, left arm, initial encounter
  • S54.8X2D — Injury of other nerves at forearm level, left arm, subsequent encounter
  • S54.8X2S — Injury of other nerves at forearm level, left arm, sequela
  • S54.8X9 — Injury of other nerves at forearm level, unspecified arm
  • S54.8X9A — Injury of other nerves at forearm level, unspecified arm, initial encounter
  • S54.8X9D — Injury of other nerves at forearm level, unspecified arm, subsequent encounter
  • S54.8X9S — Injury of other nerves at forearm level, unspecified arm, sequela
  • 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 encounter
  • S54.90XD — Injury of unspecified nerve at forearm level, unspecified arm, subsequent encounter
  • S54.90XS — Injury of unspecified nerve at forearm level, unspecified arm, sequela
  • S54.91 — Injury of unspecified nerve at forearm level, right arm
  • S54.91XA — Injury of unspecified nerve at forearm level, right arm, initial encounter
  • S54.91XD — Injury of unspecified nerve at forearm level, right arm, subsequent encounter
  • S54.91XS — Injury of unspecified nerve at forearm level, right arm, sequela
  • S54.92 — Injury of unspecified nerve at forearm level, left arm
  • S54.92XA — Injury of unspecified nerve at forearm level, left arm, initial encounter
  • S54.92XD — Injury of unspecified nerve at forearm level, left arm, subsequent encounter
  • S54.92XS — Injury of unspecified nerve at forearm level, left arm, sequela