S64
Non-Billable

Injury of nerves at wrist and hand level

Non-Billable / Non-Specific Code

What is Injury of nerves at wrist and hand level?

ICD-10-CM S64 is the diagnosis code for Injury of nerves at wrist and hand level. This code falls under the section "Injuries to the wrist, hand and fingers" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for S64

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where S64 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 7 entries
S64.0Injury of ulnar nerve at wrist and hand levelNon-BillableS64.00Injury of ulnar nerve at wrist and hand level of unspecified armBillableS64.01Injury of ulnar nerve at wrist and hand level of right armBillableS64.02Injury of ulnar nerve at wrist and hand level of left armBillableS64.1Injury of median nerve at wrist and hand levelNon-BillableS64.10Injury of median nerve at wrist and hand level of unspecified armBillableS64.11Injury of median nerve at wrist and hand level of right armBillableS64.12Injury of median nerve at wrist and hand level of left armBillableS64.2Injury of radial nerve at wrist and hand levelNon-BillableS64.20Injury of radial nerve at wrist and hand level of unspecified armBillableS64.21Injury of radial nerve at wrist and hand level of right armBillableS64.22Injury of radial nerve at wrist and hand level of left armBillableS64.3Injury of digital nerve of thumbNon-BillableS64.30Injury of digital nerve of unspecified thumbBillableS64.31Injury of digital nerve of right thumbBillableS64.32Injury of digital nerve of left thumbBillableS64.4Injury of digital nerve of other and unspecified fingerNon-BillableS64.40Injury of digital nerve of unspecified fingerBillableS64.49Injury of digital nerve of other fingerNon-BillableS64.490Injury of digital nerve of right index fingerBillableS64.491Injury of digital nerve of left index fingerBillableS64.492Injury of digital nerve of right middle fingerBillableS64.493Injury of digital nerve of left middle fingerBillableS64.494Injury of digital nerve of right ring fingerBillableS64.495Injury of digital nerve of left ring fingerBillableS64.496Injury of digital nerve of right little fingerBillableS64.497Injury of digital nerve of left little fingerBillableS64.498Injury of digital nerve of other fingerBillableS64.8Injury of other nerves at wrist and hand levelNon-BillableS64.8XInjury of other nerves at wrist and hand levelNon-BillableS64.8X1Injury of other nerves at wrist and hand level of right armBillableS64.8X2Injury of other nerves at wrist and hand level of left armBillableS64.8X9Injury of other nerves at wrist and hand level of unspecified armBillableS64.9Injury of unspecified nerve at wrist and hand levelNon-BillableS64.90Injury of unspecified nerve at wrist and hand level of unspecified armBillableS64.91Injury of unspecified nerve at wrist and hand level of right armBillableS64.92Injury of unspecified nerve at wrist and hand level of left armBillable
Related Codes

Frequently Asked Questions

Is S64 a billable ICD-10-CM code?

No, S64 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does S64 mean?

S64 is the ICD-10-CM diagnosis code for "Injury of nerves at wrist and hand level". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is S64 in?

S64 is located in Section S60-S69 — "Injuries to the wrist, hand and fingers" within Chapter 19 of the ICD-10-CM Tabular List.

What are the sub-codes of S64?

S64 has 7 sub-code(s) that provide more specific detail: S64.0, S64.1, S64.2, S64.3, S64.4 and more.

When should I use S64?

Use S64 when the patients documented diagnosis matches "Injury of nerves at wrist and hand level" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Injury of nerves at wrist and hand level?

The ICD-10-CM code for Injury of nerves at wrist and hand level is S64.

Can S64 be used for primary diagnosis?

No, S64 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is S64 in?

S64 is in Chapter 19 of the ICD-10-CM Tabular List.

Is S64 valid for 2026?

Yes, S64 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousS63.92Sprain of unspecified part of left wrist and handNext →S64.0Injury of ulnar nerve at wrist and hand level
Code Details
S64
Injury of nerves at wrist and hand level
Non-Billable / Non-Specific Code
19 — Injury, poisoning and certain other consequences of external causes (S00-T88)
S60-S69 — Injuries to the wrist, hand and fingers
2026 ICD-10-CM