S31.64AS — Puncture wound of abdominal wall with foreign body, unspecified flank with penetration into peritoneal cavity, sequela
Is S31.64AS billable?
Yes, but S31.64AS is an unspecified code. S31.64AS is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S31.64AS 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 S31.64AS — the more specific alternatives are listed below.
More specific alternatives
- S31.640SPuncture wound with foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity, sequela
- S31.641SPuncture wound with foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity, sequela
- S31.642SPuncture wound with foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity, sequela
- S31.643SPuncture wound with foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity, sequela
- S31.644SPuncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity, sequela
- S31.645SPuncture wound with foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity, sequela
- S31.646SPuncture wound of abdominal wall with foreign body, right flank with penetration into peritoneal cavity, sequela
- S31.647SPuncture wound of abdominal wall with foreign body, left flank with penetration into peritoneal cavity, sequela
S31.64AS at a glance
| Code | S31.64AS |
|---|---|
| Description | Puncture wound of abdominal wall with foreign body, unspecified flank with penetration into peritoneal cavity, 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 S31.64AS?
In S31.64AS, the 7th character S means sequela. The 7th character is required for S31.64AS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S31.64AS group to?
S31.64AS sits in MDC 09 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.
- 604Trauma to the Skin, Subcutaneous Tissue and Breast with MCCmedical
- 605Trauma to the Skin, Subcutaneous Tissue and Breast without MCCmedical
How is S31.64AS listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S31.64A, the nearest indexed parent of S31.64AS. Use them to find the family, then select the specific code.
- Puncture › flank › with › penetration into peritoneal cavity › with foreign body
Inclusion terms
Alternative wording in documentation that is classified to S31.64AS.
- Puncture wound of abdominal wall with foreign body, flank NOS, with penetration into peritoneal cavity
Excludes1 — never code together — inherited from S31
The conditions below can never be reported together with S31.64AS 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 S31.64AS to fully describe the condition. S31.64AS 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 S31.64AS, but a patient may have both at the same time. When documentation supports it, S31.64AS and the excluded code may both be reported.
Excludes2 — not included here — inherited from S30-S39
The conditions below are not part of S31.64AS, but a patient may have both at the same time. When documentation supports it, S31.64AS and the excluded code may both be reported.
Excludes2 — not included here — inherited from S31
The conditions below are not part of S31.64AS, but a patient may have both at the same time. When documentation supports it, S31.64AS and the excluded code may both be reported.
Code also — inherited from S31
Two codes may be needed to describe the condition fully. Whether S31.64AS is sequenced first depends on the reason for the encounter.
How long has S31.64AS existed?
S31.64AS first appears in FY2026.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.