S31.40 — Unspecified open wound of vagina and vulva
S31.40 is a non-billable header ICD-10-CM code for unspecified open wound of vagina and vulva. 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
Risk adjustment
S31.40 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.
How S31.40 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to S31.40.
- Wound, open›clitoris
- Wound, open›hymen
- Wound, open›vagina
- Wound, open›vulva
- Injury›vagina›open wound
- Injury›vulva›open wound
- Wound, open›genital organs, external›female›vagina
- Wound, open›genital organs, external›female›vulva
Code to one of these instead S31.40
3 child codes. Green means billable.
Related codes at this level
Codes that share S31.4. If S31.40 is not quite right, the correct code is usually one of these.
Questions about S31.40
- Is S31.40 a billable ICD-10-CM code?
- No. S31.40 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S31.40 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).