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ICD-10-CM · FY 2026 APRIL UPDATE

S64

Injury of nerves at wrist and hand level

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
S64.0Injury of ulnar nerve at wrist and hand levelCategory
S64.00Injury of ulnar nerve at wrist and hand level of unspecified armCategory
S64.00XAInjury of ulnar nerve at wrist and hand level of unspecified arm, initial encounterBillable
S64.00XDInjury of ulnar nerve at wrist and hand level of unspecified arm, subsequent encounterBillable
S64.00XSInjury of ulnar nerve at wrist and hand level of unspecified arm, sequelaBillable
S64.01Injury of ulnar nerve at wrist and hand level of right armCategory
S64.01XAInjury of ulnar nerve at wrist and hand level of right arm, initial encounterBillable
S64.01XDInjury of ulnar nerve at wrist and hand level of right arm, subsequent encounterBillable
S64.01XSInjury of ulnar nerve at wrist and hand level of right arm, sequelaBillable
S64.02Injury of ulnar nerve at wrist and hand level of left armCategory
S64.02XAInjury of ulnar nerve at wrist and hand level of left arm, initial encounterBillable
S64.02XDInjury of ulnar nerve at wrist and hand level of left arm, subsequent encounterBillable
S64.02XSInjury of ulnar nerve at wrist and hand level of left arm, sequelaBillable
S64.1Injury of median nerve at wrist and hand levelCategory
S64.10Injury of median nerve at wrist and hand level of unspecified armCategory
S64.10XAInjury of median nerve at wrist and hand level of unspecified arm, initial encounterBillable
S64.10XDInjury of median nerve at wrist and hand level of unspecified arm, subsequent encounterBillable
S64.10XSInjury of median nerve at wrist and hand level of unspecified arm, sequelaBillable
S64.11Injury of median nerve at wrist and hand level of right armCategory
S64.11XAInjury of median nerve at wrist and hand level of right arm, initial encounterBillable
S64.11XDInjury of median nerve at wrist and hand level of right arm, subsequent encounterBillable
S64.11XSInjury of median nerve at wrist and hand level of right arm, sequelaBillable
S64.12Injury of median nerve at wrist and hand level of left armCategory
S64.12XAInjury of median nerve at wrist and hand level of left arm, initial encounterBillable
S64.12XDInjury of median nerve at wrist and hand level of left arm, subsequent encounterBillable
S64.12XSInjury of median nerve at wrist and hand level of left arm, sequelaBillable
S64.2Injury of radial nerve at wrist and hand levelCategory
S64.20Injury of radial nerve at wrist and hand level of unspecified armCategory
S64.20XAInjury of radial nerve at wrist and hand level of unspecified arm, initial encounterBillable
S64.20XDInjury of radial nerve at wrist and hand level of unspecified arm, subsequent encounterBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.