ICD-10-CM 2027
ICD-10 code for lip bite
From the official ICD-10-CM alphabetic index entry “Bite (s) (animal) (human) › lip”. Page updated September 29, 2026.
About coding lip bite
The ICD-10-CM code for lip bite is S01.551 (Open bite of lip). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on S01.551.
Within S01.55 (open bite of lip and oral cavity), S01.551 is specifically for open bite of lip. Related codes cover oral cavity (S01.552).
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 S01.551 together with the conditions in its Excludes1 note: superficial bite of lip (S00.571).
More specific lip bite codes (official index)
Don't confuse with (Excludes1 for S01.551)
- superficial bite of lip (S00.571)
Common questions about lip bite ICD-10 codes
What is the ICD-10 code for lip bite?
- S01.551 — Open bite of lip (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S00.571, S00.561.
What is the ICD-10 code for superficial nec lip bite?
- S00.571 — Other superficial bite of lip (header code; choose a more specific subcode).
Is S01.551 billable?
- No. S01.551 is a header code. Report one of its more specific subcodes instead.