S31.15AD — Open bite of abdominal wall, unspecified flank without penetration into peritoneal cavity, subsequent encounter
Is S31.15AD billable?
Yes, but S31.15AD is an unspecified code. S31.15AD is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S31.15AD 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 S31.15AD — the more specific alternatives are listed below.
More specific alternatives
- S31.150DOpen bite of abdominal wall, right upper quadrant without penetration into peritoneal cavity, subsequent encounter
- S31.151DOpen bite of abdominal wall, left upper quadrant without penetration into peritoneal cavity, subsequent encounter
- S31.152DOpen bite of abdominal wall, epigastric region without penetration into peritoneal cavity, subsequent encounter
- S31.153DOpen bite of abdominal wall, right lower quadrant without penetration into peritoneal cavity, subsequent encounter
- S31.154DOpen bite of abdominal wall, left lower quadrant without penetration into peritoneal cavity, subsequent encounter
- S31.155DOpen bite of abdominal wall, periumbilic region without penetration into peritoneal cavity, subsequent encounter
- S31.156DOpen bite of abdominal wall, right flank without penetration into peritoneal cavity, subsequent encounter
- S31.157DOpen bite of abdominal wall, left flank without penetration into peritoneal cavity, subsequent encounter
S31.15AD at a glance
| Code | S31.15AD |
|---|---|
| Description | Open bite of abdominal wall, unspecified flank without penetration into peritoneal cavity, 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 S31.15AD?
In S31.15AD, the 7th character D means subsequent encounter. The 7th character is required for S31.15AD to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S31.15AD group to?
S31.15AD 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 S31.15AD listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S31.15A, the nearest indexed parent of S31.15AD. Use them to find the family, then select the specific code.
- Bite › flank (s) (animal) (human)
Inclusion terms
Alternative wording in documentation that is classified to S31.15AD.
- Open bite of abdominal wall of flank NOS without penetration into peritoneal cavity
Excludes1 — never code together — inherited from S31
The conditions below can never be reported together with S31.15AD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from S31.15
The conditions below can never be reported together with S31.15AD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- superficial bite of abdominal wall (S30.871)
Use additional code — inherited from Chapter 19
Report an additional code alongside S31.15AD to fully describe the condition. S31.15AD 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 S31.15AD, but a patient may have both at the same time. When documentation supports it, S31.15AD and the excluded code may both be reported.
Excludes2 — not included here — inherited from S30-S39
The conditions below are not part of S31.15AD, but a patient may have both at the same time. When documentation supports it, S31.15AD and the excluded code may both be reported.
Excludes2 — not included here — inherited from S31
The conditions below are not part of S31.15AD, but a patient may have both at the same time. When documentation supports it, S31.15AD and the excluded code may both be reported.
Excludes2 — not included here — inherited from S31.1
The conditions below are not part of S31.15AD, but a patient may have both at the same time. When documentation supports it, S31.15AD 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 S31.15AD is sequenced first depends on the reason for the encounter.
How long has S31.15AD existed?
S31.15AD 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.