S54.10XA — Injury of median nerve at forearm level, unspecified arm, initial encounter
Is S54.10XA billable?
Yes, but S54.10XA is an unspecified code. S54.10XA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S54.10XA is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting S54.10XA — the more specific alternatives are listed below.
S54.10XA at a glance
| Code | S54.10XA |
|---|---|
| Description | Injury of median nerve at forearm level, unspecified arm, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in S54.10XA?
In S54.10XA, the 7th character A means initial encounter. The 7th character is required for S54.10XA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S54.10XA group to?
S54.10XA sits in MDC 01 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 073Cranial and Peripheral Nerve Disorders with MCCmedical
- 074Cranial and Peripheral Nerve Disorders without MCCmedical
How is S54.10XA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S54.1, the nearest indexed parent of S54.10XA. Use them to find the family, then select the specific code.
- Injury › nerve NEC › median
Use additional code — inherited from Chapter 19
Report an additional code alongside S54.10XA to fully describe the condition. S54.10XA is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S54.10XA, but a patient may have both at the same time. When documentation supports it, S54.10XA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S50-S59
The conditions below are not part of S54.10XA, but a patient may have both at the same time. When documentation supports it, S54.10XA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S54
The conditions below are not part of S54.10XA, but a patient may have both at the same time. When documentation supports it, S54.10XA and the excluded code may both be reported.
- injury of nerves at wrist and hand level (S64.-)
Code also — inherited from S54
Two codes may be needed to describe the condition fully. Whether S54.10XA is sequenced first depends on the reason for the encounter.
- any associated open wound (S51.-)
How long has S54.10XA existed?
S54.10XA has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.