S31.6
Open wound of abdominal wall with penetration into peritoneal cavity
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
S31code
Excludes2
- open wound of hip (S71.00-S71.02)S71.00-S71.02
- open fracture of pelvis (S32.1--S32.9 with 7th character B)S32.1-S32.9
S30-S39block
Excludes2
- burns and corrosions (T20-T32)T20-T32
- effects of foreign body in anus and rectum (T18.5)T18.5
- effects of foreign body in genitourinary tract (T19.-)T19.-
- effects of foreign body in stomach, small intestine and colon (T18.2-T18.4)T18.2-T18.4
- frostbite (T33-T34)T33-T34
- insect bite or sting, venomous (T63.4)T63.4
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 12
S31code
S30-S39block
Includes
- injuries to the abdominal wall
- injuries to the anus
- injuries to the buttock
- injuries to the external genitalia
- injuries to the flank
- injuries to the groin
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 7 same parent — S31
S31.0 Open wound of lower back and pelvis category S31.1 Open wound of abdominal wall w/o penetration into perit cav category S31.2 Open wound of penis category S31.3 Open wound of scrotum and testes category S31.4 Open wound of vagina and vulva category S31.5 Open wound of unspecified external genital organs category S31.8 Open wound of other parts of abdomen, lower back and pelvis category
Subordinate codes 6
S31.60 Unsp open wound of abdominal wall w penet perit cav S31.61 Laceration w/o foreign body of abd wall w penet perit cav S31.62 Laceration w foreign body of abd wall w penet perit cav S31.63 Pnctr w/o foreign body of abd wall w penet perit cav S31.64 Puncture wound w foreign body of abd wall w penet perit cav S31.65 Open bite of abdominal wall w penetration into perit cav
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.