S54.90XD — Injury of unspecified nerve at forearm level, unspecified arm, subsequent encounter
Is S54.90XD billable?
Yes, but S54.90XD is an unspecified code. S54.90XD is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S54.90XD 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 S54.90XD — the more specific alternatives are listed below.
More specific alternatives
- S54.00XDInjury of ulnar nerve at forearm level, unspecified arm, subsequent encounter
- S54.10XDInjury of median nerve at forearm level, unspecified arm, subsequent encounter
- S54.20XDInjury of radial nerve at forearm level, unspecified arm, subsequent encounter
- S54.30XDInjury of cutaneous sensory nerve at forearm level, unspecified arm, subsequent encounter
- S54.8X1DInjury of other nerves at forearm level, right arm, subsequent encounter
S54.90XD at a glance
| Code | S54.90XD |
|---|---|
| Description | Injury of unspecified nerve at forearm level, unspecified arm, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in S54.90XD?
In S54.90XD, the 7th character D means subsequent encounter. The 7th character is required for S54.90XD to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S54.90XD group to?
S54.90XD sits in MDC 23 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.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
How is S54.90XD listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S54.9, the nearest indexed parent of S54.90XD. Use them to find the family, then select the specific code.
- Injury › nerve NEC › forearm
Use additional code — inherited from Chapter 19
Report an additional code alongside S54.90XD to fully describe the condition. S54.90XD 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 S54.90XD, but a patient may have both at the same time. When documentation supports it, S54.90XD and the excluded code may both be reported.
Excludes2 — not included here — inherited from S50-S59
The conditions below are not part of S54.90XD, but a patient may have both at the same time. When documentation supports it, S54.90XD and the excluded code may both be reported.
Excludes2 — not included here — inherited from S54
The conditions below are not part of S54.90XD, but a patient may have both at the same time. When documentation supports it, S54.90XD 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 S54.90XD is sequenced first depends on the reason for the encounter.
- any associated open wound (S51.-)
How long has S54.90XD existed?
S54.90XD 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.