ICD-10-CM 2027
ICD-10 code for Reticulatum symmetricum faciei atrophoderma
From the official ICD-10-CM alphabetic index entry “Atrophoderma, atrophodermia (of) › reticulatum symmetricum faciei”. Page updated September 29, 2026.
About coding Reticulatum symmetricum faciei atrophoderma
The ICD-10-CM code for Reticulatum symmetricum faciei atrophoderma is L66.4 (Folliculitis ulerythematosa reticulata).
Within L66 (cicatricial alopecia [scarring hair loss]), L66.4 is specifically for Folliculitis ulerythematosa reticulata. Related codes cover Pseudopelade (L66.0), lichen planopilaris (L66.1), Folliculitis decalvans (L66.2), Perifolliculitis capitis abscedens (L66.3), other cicatricial alopecia (L66.8) and cicatricial alopecia, unspecified (L66.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Reticulatum symmetricum faciei atrophoderma ICD-10 codes
What is the ICD-10 code for Reticulatum symmetricum faciei atrophoderma?
- L66.4 — Folliculitis ulerythematosa reticulata.
Is L66.4 billable?
- Yes. L66.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L66.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L66.4 as a principal diagnosis.
Is L66.4 a CC or MCC?
- No. L66.4 is neither a CC nor an MCC under MS-DRG v44.0.