ICD-10/S64.00XA

S64.00XA ICD 2026 Code: Injury of ulnar nerve at wrist and hand level of unspecified arm, initial encounter

S64.00XA is the authoritative medical code for Injury of ulnar nerve at wrist and hand level of unspecified arm, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for injury of ulnar nerve at wrist and hand level of unspecified arm, initial encounter (ICD-10-CM S64.00XA), ensuring healthcare documentation aligns with 2026 federal coding standards.

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Official Registry Overview & Definition

Injury of ulnar nerve at wrist and hand level of unspecified arm, initial encounter S64.00XA is a billable ICD-10-CM diagnosis code, valid for claim submission. It is classified under category S64 (Injury of nerves at wrist and hand level), within the Injuries to the wrist, hand and fingers S60-S69 block, within Chapter 19, Injury, Poisoning and Certain Other Consequences of External Causes S00-T88. The official tabular list attaches no additional inclusion or exclusion notes to this code. Code selection within this family is differentiated by its related codes: S64.0 (Injury of ulnar nerve at wrist and hand level); S64.00A (Injury of ulnar nerve at wrist and hand level of unspecified arm, initial encounter); S64.00D (Injury of ulnar nerve at wrist and hand level of unspecified arm, subsequent encounter); S64.00S (Injury of ulnar nerve at wrist and hand level of unspecified arm, sequela).

Codes in This Family (40)

Official ICD-10-CM classifications in the same code family as S64.00XA, with their registry titles.

  • S64 — Injury of nerves at wrist and hand level
  • S64.0 — Injury of ulnar nerve at wrist and hand level
  • S64.00A — Injury of ulnar nerve at wrist and hand level of unspecified arm, initial encounter
  • S64.00D — Injury of ulnar nerve at wrist and hand level of unspecified arm, subsequent encounter
  • S64.00S — Injury of ulnar nerve at wrist and hand level of unspecified arm, sequela
  • S64.00XD — Injury of ulnar nerve at wrist and hand level of unspecified arm, subsequent encounter
  • S64.00XS — Injury of ulnar nerve at wrist and hand level of unspecified arm, sequela
  • S64.01A — Injury of ulnar nerve at wrist and hand level of right arm, initial encounter
  • S64.01D — Injury of ulnar nerve at wrist and hand level of right arm, subsequent encounter
  • S64.01S — Injury of ulnar nerve at wrist and hand level of right arm, sequela
  • S64.01XA — Injury of ulnar nerve at wrist and hand level of right arm, initial encounter
  • S64.01XD — Injury of ulnar nerve at wrist and hand level of right arm, subsequent encounter
  • S64.01XS — Injury of ulnar nerve at wrist and hand level of right arm, sequela
  • S64.02A — Injury of ulnar nerve at wrist and hand level of left arm, initial encounter
  • S64.02D — Injury of ulnar nerve at wrist and hand level of left arm, subsequent encounter
  • S64.02S — Injury of ulnar nerve at wrist and hand level of left arm, sequela
  • S64.02XA — Injury of ulnar nerve at wrist and hand level of left arm, initial encounter
  • S64.02XD — Injury of ulnar nerve at wrist and hand level of left arm, subsequent encounter
  • S64.02XS — Injury of ulnar nerve at wrist and hand level of left arm, sequela
  • S64.1 — Injury of median nerve at wrist and hand level
  • S64.10A — Injury of median nerve at wrist and hand level of unspecified arm, initial encounter
  • S64.10D — Injury of median nerve at wrist and hand level of unspecified arm, subsequent encounter
  • S64.10S — Injury of median nerve at wrist and hand level of unspecified arm, sequela
  • S64.10XA — Injury of median nerve at wrist and hand level of unspecified arm, initial encounter
  • S64.10XD — Injury of median nerve at wrist and hand level of unspecified arm, subsequent encounter
  • S64.10XS — Injury of median nerve at wrist and hand level of unspecified arm, sequela
  • S64.11A — Injury of median nerve at wrist and hand level of right arm, initial encounter
  • S64.11D — Injury of median nerve at wrist and hand level of right arm, subsequent encounter
  • S64.11S — Injury of median nerve at wrist and hand level of right arm, sequela
  • S64.11XA — Injury of median nerve at wrist and hand level of right arm, initial encounter
  • S64.11XD — Injury of median nerve at wrist and hand level of right arm, subsequent encounter
  • S64.11XS — Injury of median nerve at wrist and hand level of right arm, sequela
  • S64.12A — Injury of median nerve at wrist and hand level of left arm, initial encounter
  • S64.12D — Injury of median nerve at wrist and hand level of left arm, subsequent encounter
  • S64.12S — Injury of median nerve at wrist and hand level of left arm, sequela
  • S64.12XA — Injury of median nerve at wrist and hand level of left arm, initial encounter
  • S64.12XD — Injury of median nerve at wrist and hand level of left arm, subsequent encounter
  • S64.12XS — Injury of median nerve at wrist and hand level of left arm, sequela
  • S64.2 — Injury of radial nerve at wrist and hand level
  • S64.20A — Injury of radial nerve at wrist and hand level of unspecified arm, initial encounter

Related Codes & Numerical Sequence (Crawl Map)

Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:

ICD Code S60.00XA Contusion of unspecified finger without damage to nail, initial encounter
ICD Code S67.00XA Crushing injury of unspecified thumb, initial encounter
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