ICD-10 L40.0
Billable / SpecificPsoriasis vulgaris
About ICD-10-CM L40.0
ICD-10-CM code L40.0 represents Psoriasis vulgaris. This is a billable/specific code in the Skin and Subcutaneous Tissue chapter (block L40). The 2026 edition of ICD-10-CM L40.0 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under L40.0. Per CMS ICD-10-CM Tabular 2026.
- Nummular psoriasis
- Plaque psoriasis
Medicare LCD Coverage for L40.0
Local Coverage Determinations (LCDs) from CMS MACs that list L40.0 as a covered diagnosis.
Showing top 10 of 44 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing L40.0.
5 Medicare
5 Aetna
CPT Codes Commonly Billed with L40.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 99204 New patient office visit — multiple chronic conditions: HTN, T2DM, hyperlipidemia, asthma, anxiety, depression, obesity, IBS, COPD, thyroid, anemia, CAD, sleep apnea, psoriasis, RA Primary Care
- 99214 Established patient — moderate complexity: uncontrolled HTN, diabetes with complications, multiple chronic conditions, COPD, AFib, CKD, sleep apnea, chronic pain, depression Primary Care
- 11102 Tangential skin biopsy — uncertain neoplasm skin, actinic keratosis, melanocytic nevi, skin cancer, melanoma, psoriasis, discoid lupus, skin disorder, rash, seborrheic keratosis, benign neoplasm, dermatitis, prurigo, dermatitis herpetiformis Dermatology
- 11104 Punch biopsy skin — uncertain skin neoplasm, skin cancer, melanoma, nevi, psoriasis, lupus, connective tissue disorder, pemphigus, bullous pemphigoid Dermatology
- 96910 Phototherapy UVB — psoriasis, guttate psoriasis, psoriasis unspecified, atopic dermatitis, prurigo, dermatitis, lichen planus Dermatology
- 11732 CMS LCD: Billing and Coding: Surgical Treatment of Nails CMS LCD
- 11765 CMS LCD: Billing and Coding: Surgical Treatment of Nails CMS LCD
- 11750 CMS LCD: Billing and Coding: Surgical Treatment of Nails CMS LCD
Convert L40.0 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| L40.0 | 6961 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To L40.0
Other codes in section L40-L45 (Papulosquamous disorders).
ICD-10 L40.0, Billing FAQ
Is ICD-10 code L40.0 billable? +
Yes, L40.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to L40.0? +
ICD-10 L40.0 includes: Nummular psoriasis; Plaque psoriasis.
What CPT codes are commonly billed with L40.0? +
Procedures frequently paired with L40.0 include: 99204, 99214, 11102, 11104, 96910.
What ICD-9 codes does L40.0 map to? +
Per CMS GEMs, L40.0 maps to ICD-9 codes: 6961. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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