S31.129A — Laceration of abdominal wall with foreign body, unspecified quadrant without penetration into peritoneal cavity, initial encounter
Is S31.129A billable?
Yes, but S31.129A is an unspecified code. S31.129A is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S31.129A 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 S31.129A — the more specific alternatives are listed below.
More specific alternatives
- S31.120ALaceration of abdominal wall with foreign body, right upper quadrant without penetration into peritoneal cavity, initial encounter
- S31.121ALaceration of abdominal wall with foreign body, left upper quadrant without penetration into peritoneal cavity, initial encounter
- S31.122ALaceration of abdominal wall with foreign body, epigastric region without penetration into peritoneal cavity, initial encounter
- S31.123ALaceration of abdominal wall with foreign body, right lower quadrant without penetration into peritoneal cavity, initial encounter
- S31.124ALaceration of abdominal wall with foreign body, left lower quadrant without penetration into peritoneal cavity, initial encounter
- S31.125ALaceration of abdominal wall with foreign body, periumbilic region without penetration into peritoneal cavity, initial encounter
- S31.126ALaceration with foreign body of abdominal wall, right flank without penetration into peritoneal cavity, initial encounter
- S31.127ALaceration with foreign body of abdominal wall, left flank without penetration into peritoneal cavity, initial encounter
S31.129A at a glance
| Code | S31.129A |
|---|---|
| Description | Laceration of abdominal wall with foreign body, unspecified quadrant without penetration into peritoneal cavity, 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 S31.129A?
In S31.129A, the 7th character A means initial encounter. The 7th character is required for S31.129A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S31.129A group to?
S31.129A 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 S31.129A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S31.129, the nearest indexed parent of S31.129A. Use them to find the family, then select the specific code.
- Laceration › pubic region › with foreign body
- Laceration › perineum › male › with foreign body
- Laceration › abdomen, abdominal › wall › with › foreign body
Excludes1 — never code together — inherited from S31
The conditions below can never be reported together with S31.129A on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 19
Report an additional code alongside S31.129A to fully describe the condition. S31.129A 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 S31.129A, but a patient may have both at the same time. When documentation supports it, S31.129A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S30-S39
The conditions below are not part of S31.129A, but a patient may have both at the same time. When documentation supports it, S31.129A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S31
The conditions below are not part of S31.129A, but a patient may have both at the same time. When documentation supports it, S31.129A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S31.1
The conditions below are not part of S31.129A, but a patient may have both at the same time. When documentation supports it, S31.129A and the excluded code may both be reported.
- open wound of abdominal wall with penetration into peritoneal cavity (S31.6-)
Code also — inherited from S31
Two codes may be needed to describe the condition fully. Whether S31.129A is sequenced first depends on the reason for the encounter.
How long has S31.129A existed?
S31.129A 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.