Psoriasis Documentation Guide
Chronic immune-mediated skin disease characterized by well-demarcated erythematous plaques with silvery scale.
ICD-10 Codes: L40.0, L40.1, L40.4, L40.8, L40.9
Common Symptoms
- Erythematous plaques with scale
- Pruritus
- Nail pitting
- Joint pain
- Skin cracking and bleeding
Key Documentation Elements
- Psoriasis type (plaque, guttate, pustular, erythrodermic)
- Body surface area and severity (PASI or BSA)
- Joint involvement assessment
- Current and prior biologic therapy
- Comorbidity screening (cardiovascular, metabolic)
Documentation Challenges
- Documenting body surface area and PASI score
- Capturing psoriatic arthritis screening findings
- Recording biologic therapy history and response
- Tracking comorbid cardiovascular and metabolic risks
Billing Considerations
- Type-specific coding (L40.0 plaque, L40.1 generalized pustular)
- Psoriatic arthritis co-coding with L40.5x
- Biologic infusion and injection administration coding
Frequently Asked Questions
How is psoriasis type coded in ICD-10?
Plaque psoriasis uses L40.0, generalized pustular L40.1, guttate L40.4, and other/unspecified L40.8/L40.9. Psoriatic arthropathy uses L40.5x. Scribeable identifies the type from your documented examination.
How does Scribeable help with psoriasis documentation?
Scribeable captures plaque distribution, severity scores, treatment history, and joint assessments from your encounter, supporting biologic prior authorizations and quality of care documentation.