S31.0 — Open wound of lower back and pelvis
S31.0 is a non-billable header ICD-10-CM code for open wound of lower back and pelvis. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category S31
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with S31.0
These codes carry an Excludes1 note pointing at S31.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S31.0 alone.
- S30.87Other superficial bite of abdomen, lower back, pelvis and external genitals
Risk adjustment
S31.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead S31.0
6 child codes. Green means billable.
- S31.00Unspecified open wound of lower back and pelvis
- S31.01Laceration without foreign body of lower back and pelvis
- S31.02Laceration with foreign body of lower back and pelvis
- S31.03Puncture wound without foreign body of lower back and pelvis
- S31.04Puncture wound with foreign body of lower back and pelvis
- S31.05Open bite of lower back and pelvis
Related codes at this level
Codes that share S31. If S31.0 is not quite right, the correct code is usually one of these.
- S31.1Open wound of abdominal wall without penetration into peritoneal cavity
- S31.2Open wound of penis
- S31.3Open wound of scrotum and testes
- S31.4Open wound of vagina and vulva
- S31.5Open wound of unspecified external genital organs
- S31.6Open wound of abdominal wall with penetration into peritoneal cavity
- S31.8Open wound of other parts of abdomen, lower back and pelvis
Questions about S31.0
- Is S31.0 a billable ICD-10-CM code?
- No. S31.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S31.0 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39).