S31

Non-Billable

ChapterS00–T88

Rankcategory

Official Description

Open wound of abdomen, lower back, pelvis and external genitals

Use a more specific code (0 billable, 8 non-billable)

S31.0Open wound of lower back and pelvishas subcodes S31.1Open wound of abdominal wall without penetration into peritoneal cavityhas subcodes S31.2Open wound of penishas subcodes S31.3Open wound of scrotum and testeshas subcodes S31.4Open wound of vagina and vulvahas subcodes S31.5Open wound of unspecified external genital organshas subcodes S31.6Open wound of abdominal wall with penetration into peritoneal cavityhas subcodes S31.8Open wound of other parts of abdomen, lower back and pelvishas subcodes

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

CH19 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use Additional Code

code to identify any retained foreign body, if applicable (Z18.-)

S30-S39 Parent Instructions

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

Excludes2(Not included here. Code separately if applicable.)

burns and corrosions (T20-T32)
effects of foreign body in anus and rectum (T18.5)
effects of foreign body in genitourinary tract (T19.-)
effects of foreign body in stomach, small intestine and colon (T18.2-T18.4)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

traumatic amputation of part of abdomen, lower back and pelvis (S38.2-, S38.3)

Excludes2(Not included here. Code separately if applicable.)

open wound of hip (S71.00-S71.02)
open fracture of pelvis (S32.1--S32.9 with 7th character B)

Code Also

any associated:
spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-)
wound infection

Clinical Hierarchy

BillableHas subcodes

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)

S30-S39Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39)

S31Open wound of abdomen, lower back, pelvis and external genitalsNot billable

S31.0Open wound of lower back and pelvisSubcodes

S31.1Open wound of abdominal wall without penetration into peritoneal cavitySubcodes

S31.2Open wound of penisSubcodes

S31.3Open wound of scrotum and testesSubcodes

S31.4Open wound of vagina and vulvaSubcodes

S31.5Open wound of unspecified external genital organsSubcodes

S31.6Open wound of abdominal wall with penetration into peritoneal cavitySubcodes

S31.8Open wound of other parts of abdomen, lower back and pelvisSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to S31:

blockS30-S39

Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39)

View context instructions

chapterCH19

Injury, poisoning and certain other consequences of external causes (S00-T88)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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