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ICD-10-CM 2027

ICD-10 code for abdominal wall blister

S30.821

Blister (nonthermal) of abdominal wall

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Blister (nonthermal) › abdominal wall”. Page updated September 29, 2026.

About coding abdominal wall blister

The ICD-10-CM code for abdominal wall blister is S30.821 (Blister (nonthermal) of abdominal wall).

Within S30.82 (Blister (nonthermal) of abdomen, lower back, pelvis and external genitals), S30.821 is specifically for Blister (nonthermal) of abdominal wall. Related codes cover lower back and pelvis (S30.820), penis (S30.822), scrotum and testes (S30.823), vagina and vulva (S30.824), unspecified external genital organs, male (S30.825), unspecified external genital organs, female (S30.826), anus (S30.827) and flank (S30.82A).

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.

Common questions about abdominal wall blister ICD-10 codes

What is the ICD-10 code for abdominal wall blister?

S30.821 — Blister (nonthermal) of abdominal wall (a header code; report a more specific subcode).

Is S30.821 billable?

No. S30.821 is a header code. Report one of its more specific subcodes instead.