ICD-10-CM 2027 diagnosis code

L01Impetigo

Not billable — use a more specific code

L01 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L01

L01 is the ICD-10-CM diagnosis code for impetigo. It belongs to block L00-L08 (infections of the skin and subcutaneous tissue) and chapter 12 (diseases of the skin and subcutaneous tissue). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: L01.0 (impetigo) and L01.1 (dermatoses).

Don't report L01 together with the conditions in its Excludes1 note: impetigo herpetiformis (L40.1).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under L01

Coding notes

Excludes1Not coded here — never report together with this code

impetigo herpetiformis (L40.1)

Notes that apply from higher levels

Instructions written at a parent level also apply to L01.

Broader instructions also apply from L00-L08 Infections of the skin and subcutaneous tissue and Chapter 12: Diseases of the skin and subcutaneous tissue.

Code history

2016
2017
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2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about L01

Is L01 billable?: No. L01 is a header code. Report one of its more specific subcodes instead.