ICD-10-CM 2027 diagnosis code
S31.6Open wound of abdominal wall with penetration into peritoneal cavity
Not billable — use a more specific codeRequires 7th character
S31.6 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it and add the required 7th character.Short description: Open wound of abdominal wall w penetration into perit cav
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S31.6
S31.6 is the ICD-10-CM diagnosis code for open wound of abdominal wall with penetration into peritoneal cavity. It belongs to category S31 (open wound of abdomen, lower back, pelvis and external genitals), block S30-S39 (injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.
Within S31 (open wound of abdomen, lower back, pelvis and external genitals), S31.6 is specifically for open wound of abdominal wall with penetration into peritoneal cavity. Related codes cover lower back and pelvis (S31.0), abdominal wall without penetration into peritoneal cavity (S31.1), penis (S31.2), scrotum and testes (S31.3), vagina and vulva (S31.4), unspecified external genital organs (S31.5) and other parts of abdomen, lower back and pelvis (S31.8).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category S31
- S31.60Unspecified open wound of abdominal wall with penetration into peritoneal cavity
- S31.600Unspecified open wound of abdominal wall, right upper quadrant with penetration into peritoneal cavity
- S31.601Unspecified open wound of abdominal wall, left upper quadrant with penetration into peritoneal cavity
- S31.602Unspecified open wound of abdominal wall, epigastric region with penetration into peritoneal cavity
- S31.603Unspecified open wound of abdominal wall, right lower quadrant with penetration into peritoneal cavity
- S31.604Unspecified open wound of abdominal wall, left lower quadrant with penetration into peritoneal cavity
- S31.605Unspecified open wound of abdominal wall, periumbilic region with penetration into peritoneal cavity
- S31.606Unspecified open wound of abdominal wall, right flank with penetration into peritoneal cavity
- S31.607Unspecified open wound of abdominal wall, left flank with penetration into peritoneal cavity
- S31.609Unspecified open wound of abdominal wall, unspecified quadrant with penetration into peritoneal cavity
- S31.60AUnspecified open wound of abdominal wall, unspecified flank with penetration into peritoneal cavity
- S31.61Laceration without foreign body of abdominal wall with penetration into peritoneal cavity
- S31.610Laceration without foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity
- S31.611Laceration without foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity
- S31.612Laceration without foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity
- S31.613Laceration without foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity
- S31.614Laceration without foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity
- S31.615Laceration without foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity
- S31.616Laceration without foreign body of abdominal wall, right flank with penetration into peritoneal cavity
- S31.617Laceration without foreign body of abdominal wall, left flank with penetration into peritoneal cavity
- S31.619Laceration without foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity
- S31.61ALaceration without foreign body of abdominal wall, unspecified flank with penetration into peritoneal cavity
- S31.62Laceration with foreign body of abdominal wall with penetration into peritoneal cavity
- S31.620Laceration with foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity
- S31.621Laceration with foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity
- S31.622Laceration with foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity
- S31.623Laceration with foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity
- S31.624Laceration with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity
- S31.625Laceration with foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity
- S31.626Laceration with foreign body of abdominal wall, right flank with penetration into peritoneal cavity
- S31.627Laceration with foreign body of abdominal wall, left flank with penetration into peritoneal cavity
- S31.629Laceration with foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity
- S31.62ALaceration with foreign body of abdominal wall, unspecified flank with penetration into peritoneal cavity
- S31.63Puncture wound without foreign body of abdominal wall with penetration into peritoneal cavity
- S31.630Puncture wound without foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity
- S31.631Puncture wound without foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity
- S31.632Puncture wound without foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity
- S31.633Puncture wound without foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity
- S31.634Puncture wound without foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity
- S31.635Puncture wound without foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity
- S31.636Puncture wound of abdominal wall without foreign body, right flank with penetration into peritoneal cavity
- S31.637Puncture wound of abdominal wall without foreign body, left flank with penetration into peritoneal cavity
- S31.639Puncture wound without foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity
- S31.63APuncture wound of abdominal wall without foreign body, unspecified flank with penetration into peritoneal cavity
- S31.64Puncture wound with foreign body of abdominal wall with penetration into peritoneal cavity
- S31.640Puncture wound with foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity
- S31.641Puncture wound with foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity
- S31.642Puncture wound with foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity
- S31.643Puncture wound with foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity
- S31.644Puncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity
- S31.645Puncture wound with foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity
- S31.646Puncture wound of abdominal wall with foreign body, right flank with penetration into peritoneal cavity
- S31.647Puncture wound of abdominal wall with foreign body, left flank with penetration into peritoneal cavity
- S31.649Puncture wound with foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity
- S31.64APuncture wound of abdominal wall with foreign body, unspecified flank with penetration into peritoneal cavity
- S31.65Open bite of abdominal wall with penetration into peritoneal cavity
- S31.650Open bite of abdominal wall, right upper quadrant with penetration into peritoneal cavity
- S31.651Open bite of abdominal wall, left upper quadrant with penetration into peritoneal cavity
- S31.652Open bite of abdominal wall, epigastric region with penetration into peritoneal cavity
- S31.653Open bite of abdominal wall, right lower quadrant with penetration into peritoneal cavity
- S31.654Open bite of abdominal wall, left lower quadrant with penetration into peritoneal cavity
- S31.655Open bite of abdominal wall, periumbilic region with penetration into peritoneal cavity
- S31.656Open bite of abdominal wall, right flank with penetration into peritoneal cavity
- S31.657Open bite of abdominal wall, left flank with penetration into peritoneal cavity
- S31.659Open bite of abdominal wall, unspecified quadrant with penetration into peritoneal cavity
- S31.65AOpen bite of abdominal wall, unspecified flank with penetration into peritoneal cavity
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Notes that apply from higher levels
Instructions written at a parent level also apply to S31.6.
Codes whose notes reference S31.6
- S31.1Excludes2
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about S31.6
Is S31.6 billable?
- No. S31.6 is a header code. Report one of its more specific subcodes instead.