S31.10A — Unspecified open wound of abdominal wall, unspecified flank without penetration into peritoneal cavity
S31.10A is a non-billable header ICD-10-CM code for unspecified open wound of abdominal wall, unspecified flank without penetration into peritoneal cavity. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category S31
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Open wound of abdominal wall of flank NOS without penetration into peritoneal cavity
Risk adjustment
S31.10A does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How S31.10A is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to S31.10A.
- Wound, open›flank
Code to one of these instead S31.10A
3 child codes. Green means billable.
- S31.10AAUnspecified open wound of abdominal wall, unspecified flank without penetration into peritoneal cavity, initial encounter
- S31.10ADUnspecified open wound of abdominal wall, unspecified flank without penetration into peritoneal cavity, subsequent encounter
- S31.10ASUnspecified open wound of abdominal wall, unspecified flank without penetration into peritoneal cavity, sequela
Related codes at this level
Codes that share S31.10. If S31.10A is not quite right, the correct code is usually one of these.
- S31.100Unspecified open wound of abdominal wall, right upper quadrant without penetration into peritoneal cavity
- S31.101Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavity
- S31.102Unspecified open wound of abdominal wall, epigastric region without penetration into peritoneal cavity
- S31.103Unspecified open wound of abdominal wall, right lower quadrant without penetration into peritoneal cavity
- S31.104Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavity
- S31.105Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity
- S31.106Unspecified open wound of abdominal wall, right flank without penetration into peritoneal cavity
- S31.107Unspecified open wound of abdominal wall, left flank without penetration into peritoneal cavity
- S31.109Unspecified open wound of abdominal wall, unspecified quadrant without penetration into peritoneal cavity
Questions about S31.10A
- Is S31.10A a billable ICD-10-CM code?
- No. S31.10A is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S31.10A sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39).