ICD-10-CM 2027
ICD-10 code for cheek blister
From the official ICD-10-CM alphabetic index entry “Blister (nonthermal) › cheek”. Page updated September 29, 2026.
About coding cheek blister
The ICD-10-CM code for cheek blister is S00.82 (Blister (nonthermal) of other part of head). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on S00.82.
Within S00.8, choose S00.82 (Blister (nonthermal) of other part of head) only when documentation doesn't support a more specific option: unspecified superficial injury of other part of head (S00.80), abrasion of other part of head (S00.81), contusion of other part of head (S00.83), external constriction of other part of head (S00.84), superficial foreign body of other part of head (S00.85), insect bite (nonvenomous) of other part of head (S00.86) and other superficial bite of other part of head (S00.87).
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.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific cheek blister codes (official index)
- internal S00.522 — Blister (nonthermal) of oral cavity
Common questions about cheek blister ICD-10 codes
What is the ICD-10 code for cheek blister?
- S00.82 — Blister (nonthermal) of other part of head (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S00.522.
What is the ICD-10 code for internal cheek blister?
- S00.522 — Blister (nonthermal) of oral cavity (header code; choose a more specific subcode).
Is S00.82 billable?
- No. S00.82 is a header code. Report one of its more specific subcodes instead.