Erythema nodosum (L52) ICD-10-CM
The L52 code range covers erythema nodosum with 1 ICD-10-CM diagnosis codes. 1 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.
- tuberculous erythema nodosum A18.4
Codes in the L52 Range 1 codes · 1 billable
- L52 Erythema nodosum
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the L52 range.
Erythema Nodosum
An erythematous eruption commonly associated with drug reactions or infection and characterized by inflammatory nodules that are usually tender, multiple, and bilateral. These nodules are located predominantly on the shins with less common occurrence on the thighs and forearms. They undergo characteristic color changes ending in temporary bruise-like areas. This condition usually subsides in 3-6 weeks without scarring or atrophy.
About the L52 Code Range
Erythema nodosum causes inflamed, usually tender bumps, mostly on the shins, that change color and leave temporary bruise-like areas. L52 sits in the urticaria and erythema group within diseases of the skin and tissue beneath it.
Questions About This Page
How many billable codes are in the L52 range?
Of the 1 codes in this range, 1 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 L52 range classify?
The range classifies erythema nodosum. 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.
