S29.8XXA — Other specified injuries of thorax, initial encounter
Is S29.8XXA billable?
Yes, but S29.8XXA is an unspecified code. S29.8XXA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S29.8XXA 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 S29.8XXA.
S29.8XXA at a glance
| Code | S29.8XXA |
|---|---|
| Description | Other specified injuries of thorax, 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 S29.8XXA?
In S29.8XXA, the 7th character A means initial encounter. The 7th character is required for S29.8XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S29.8XXA group to?
S29.8XXA sits in MDC 21 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.
- 913Traumatic Injury with MCCmedical
- 914Traumatic Injury without MCCmedical
How is S29.8XXA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S29.8, the nearest indexed parent of S29.8XXA. Use them to find the family, then select the specific code.
- Injury › thorax, thoracic › external › specified NEC
Use additional code — inherited from Chapter 19
Report an additional code alongside S29.8XXA to fully describe the condition. S29.8XXA 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 S29.8XXA, but a patient may have both at the same time. When documentation supports it, S29.8XXA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S20-S29
The conditions below are not part of S29.8XXA, but a patient may have both at the same time. When documentation supports it, S29.8XXA 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)
Code also — inherited from S29
Two codes may be needed to describe the condition fully. Whether S29.8XXA is sequenced first depends on the reason for the encounter.
- any associated open wound (S21.-)
How long has S29.8XXA existed?
S29.8XXA 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.