Impetigo (L01) ICD-10-CM
The L01 code range covers impetigo with 8 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- impetigo herpetiformis L40.1
Codes in the L01 Range 8 codes · 6 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the L01 range.
Impetigo
A common superficial bacterial infection caused by STAPHYLOCOCCUS AUREUS or group A beta-hemolytic streptococci. Characteristics include pustular lesions that rupture and discharge a thin, amber-colored fluid that dries and forms a crust. This condition is commonly located on the face, especially about the mouth and nose.
About the L01 Code Range
Impetigo is a bacterial infection on the skin’s surface. Pus-filled spots can break open, release amber-colored fluid, and form a crust.
L01 separates impetigo itself from other skin conditions that develop impetigo. L01.0 identifies impetigo as unspecified, non-bullous, Bockhart’s, bullous, or another form. L01.1 identifies impetigo developing in other skin conditions.
Questions About This Page
How many billable codes are in the L01 range?
Of the 8 codes in this range, 6 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the L01 range classify?
The range classifies impetigo. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
