S24.9XXS — Injury of unspecified nerve of thorax, sequela
Is S24.9XXS billable?
Yes, but S24.9XXS is an unspecified code. S24.9XXS is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S24.9XXS 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 S24.9XXS — the more specific alternatives are listed below.
S24.9XXS at a glance
| Code | S24.9XXS |
|---|---|
| Description | Injury of unspecified nerve of thorax, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in S24.9XXS?
In S24.9XXS, the 7th character S means sequela. The 7th character is required for S24.9XXS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S24.9XXS group to?
S24.9XXS sits in MDC 01 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 091Other Disorders of Nervous System with MCCmedical
- 092Other Disorders of Nervous System with CCmedical
- 093Other Disorders of Nervous System without CC/MCCmedical
How is S24.9XXS listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S24.9, the nearest indexed parent of S24.9XXS. Use them to find the family, then select the specific code.
- Injury › nerve NEC › thorax
Use additional code — inherited from Chapter 19
Report an additional code alongside S24.9XXS to fully describe the condition. S24.9XXS 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 S24.9XXS, but a patient may have both at the same time. When documentation supports it, S24.9XXS and the excluded code may both be reported.
Excludes2 — not included here — inherited from S20-S29
The conditions below are not part of S24.9XXS, but a patient may have both at the same time. When documentation supports it, S24.9XXS and the excluded code may both be reported.
- burns and corrosions (T20-T32)
- effects of foreign body in bronchus (T17.5)
- effects of foreign body in esophagus (T18.1)
- effects of foreign body in lung (T17.8)
- effects of foreign body in trachea (T17.4)
- frostbite (T33-T34)
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous (T63.4)
Excludes2 — not included here — inherited from S24
The conditions below are not part of S24.9XXS, but a patient may have both at the same time. When documentation supports it, S24.9XXS and the excluded code may both be reported.
- injury of brachial plexus (S14.3)
Code also — inherited from S24
Two codes may be needed to describe the condition fully. Whether S24.9XXS is sequenced first depends on the reason for the encounter.
How long has S24.9XXS existed?
S24.9XXS 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.