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ICD-10-CM 2027

ICD-10 code for hymen bite

S31.45

Open bite of vagina and vulva

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Bite (s) (animal) (human) › hymen”. Page updated September 29, 2026.

About coding hymen bite

The ICD-10-CM code for hymen bite is S31.45 (Open bite of vagina and vulva).

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).

Don't confuse with (Excludes1 for S31.45)

Common questions about hymen bite ICD-10 codes

What is the ICD-10 code for hymen bite?

S31.45 — Open bite of vagina and vulva (a header code; report a more specific subcode).

Is S31.45 billable?

No. S31.45 is a header code. Report one of its more specific subcodes instead.