ICD-10-CM Tabular Index · Chapter 12 · FY 2027 L42

Pityriasis rosea (L42) ICD-10-CM

The L42 code range covers pityriasis rosea 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.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
1
Diagnosis Codes
1
Billable Codes
L42
Code Range
L40–L45
Parent Section
ICD-10-CM

Codes in the L42 Range 1 codes · 1 billable

1 of 1 shown
  • L42 Pityriasis rosea

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the L42 range.

Pityriasis Rosea

A mild exanthematous inflammation of unknown etiology. It is characterized by the presence of salmon-colored maculopapular lesions. The most striking feature is the arrangement of the lesions such that the long axis is parallel to the lines of cleavage. The eruptions are usually generalized, affecting chiefly the trunk, and the course is often self-limiting.

Questions About This Page

How many billable codes are in the L42 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 L42 range classify?

The range classifies pityriasis rosea. 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.