ICD-10-CM 2027
ICD-10 code for vulva bite
From the official ICD-10-CM alphabetic index entry “Bite (s) (animal) (human) › vulva”. Page updated September 29, 2026.
About coding vulva bite
The ICD-10-CM code for vulva bite is S31.45 (Open bite of vagina and vulva). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on S31.45.
Within S31.4 (open wound of vagina and vulva), S31.45 is specifically for open bite of vagina and vulva. Related codes cover unspecified open wound of vagina and vulva (S31.40), laceration without foreign body of vagina and vulva (S31.41), laceration with foreign body of vagina and vulva (S31.42), puncture wound without foreign body of vagina and vulva (S31.43) and puncture wound with foreign body of vagina and vulva (S31.44).
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.
Don't report S31.45 together with the conditions in its Excludes1 note: superficial bite of vagina and vulva (S30.864, S30.874).
More specific vulva bite codes (official index)
Don't confuse with (Excludes1 for S31.45)
Common questions about vulva bite ICD-10 codes
What is the ICD-10 code for vulva bite?
- S31.45 — Open bite of vagina and vulva (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S30.874, S30.864.
What is the ICD-10 code for superficial nec vulva bite?
- S30.874 — Other superficial bite of vagina and vulva (header code; choose a more specific subcode).
Is S31.45 billable?
- No. S31.45 is a header code. Report one of its more specific subcodes instead.