S31.819
Unspecified open wound of right buttock
Not billable — category only FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 5 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
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.-
Alongside this code 5 same parent — S31.81
S31.811 Laceration without foreign body of right buttock category S31.812 Laceration with foreign body of right buttock category S31.813 Puncture wound without foreign body of right buttock category S31.814 Puncture wound with foreign body of right buttock category S31.815 Open bite of right buttock category
Subordinate codes 3
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.