S31.0Open wound of lower back and pelvis

S31.0 is the ICD-10-CM diagnosis code for open wound of lower back and pelvis. 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), S31.0 is specifically for open wound of lower back and pelvis. Related codes cover 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), abdominal wall with penetration into peritoneal cavity (S31.6) 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.