ICD-10 code for Seborrhea

The ICD-10-CM code for Seborrhea is L21.9 (Seborrheic dermatitis, unspecified). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L21.9.

Within L21, choose L21.9 (unspecified) only when documentation doesn't support a more specific option: Seborrhea capitis (L21.0), seborrheic infantile dermatitis (L21.1) and other seborrheic dermatitis (L21.8).

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.