ICD-10 code for contact occupational dermatitis

The ICD-10-CM code for contact occupational dermatitis is L25.9 (Unspecified contact dermatitis, unspecified cause). The official index lists 60 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L25.9.

Within L25, choose L25.9 (unspecified cause) only when documentation doesn't support a more specific option: due to cosmetics (L25.0), due to drugs in contact with skin (L25.1), due to dyes (L25.2), due to other chemical products (L25.3), due to food in contact with skin (L25.4), due to plants, except food (L25.5) and due to other agents (L25.8).

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.