ICD Code L40.8

ICD code L40.8 is other types of psoriasis that do not fall under more specific categories, covering less common forms of the skin condition.

1. Presence of chronic, well-demarcated, erythematous plaques with or without silvery scales that do not fit classic subtypes of psoriasis

2. Lesions that may appear in atypical locations or have unusual morphologies

3. Absence of features specific to guttate, pustular, erythrodermic, or arthropathic psoriasis

4. Variable involvement of skin, scalp, nails, or mucous membranes

5. Symptoms may include pruritus, scaling, and inflammation

6. Diagnosis confirmed by clinical evaluation, and, if necessary, histopathology to rule out other dermatoses

7. Exclusion of other specific forms of psoriasis based on clinical presentation and history

Relevant CPT codes that may be used to treat ICD code L40.8 include:

- 96910 (Photochemotherapy; tar and/or ultraviolet B [Goeckerman treatment] or petrolatum and/or ultraviolet B)

- 96912 (Photochemotherapy; psoralens and ultraviolet A [PUVA])

- 96920 (Laser treatment for inflammatory skin disease [e.g., psoriasis]; total body, single session)

- 96921 (Laser treatment for inflammatory skin disease; partial body, less than total body area)

- 96922 (Laser treatment for inflammatory skin disease; scalp)

- 99201–99215 (Evaluation and management services, depending on new or established patient and complexity)

- 96372 (Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular)

- 96401 (Chemotherapy administration, subcutaneous or intramuscular; non-hormonal anti-neoplastic)

CPT code selection should be based on the specific treatment rendered for L40.8.

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