DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

L42 diagnosis code · Billable category · FY2027

L42 Pityriasis rosea

  • Billable
  • Not CC/MCC
  • POA reported

L42 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

Where it sits

  1. Chapter 12 Diseases of the skin and subcutaneous tissue (L00-L99)
  2. L40-L45 Papulosquamous disorders (L40-L45)
  3. L42 Pityriasis rosea
CC / MCC
Neither
MS-DRG
606-607
HCC V28
–
POA
Reported
Code Editor
–
Index entries
5

Instructions

Notes that also apply

Chapter 12 instructions (Excludes2 10): printed on the chapter 12 page.

Index entries

  • Gibert's disease or pityriasis → L42
  • Disease, diseasedGibert's (pityriasis rosea) → L42
  • Pityriasis (capitis)circinata (et maculata) → L42
  • Pityriasis (capitis)rosea → L42
  • Disease, diseasedHebra'spityriasismaculata et circinata → L42

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for L42
CC / MCCNeither
Appendix BMDC 09 Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast, MS-DRG 606-607 (Minor Skin Disorders with MCC…)
Code Editor–
POAReported
HCC V28–

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy