L40.9
BillablePsoriasis, unspecified
Psoriasis, unspecified
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •lipomelanotic reticulosisI89.8
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •viral wartsB07
Related Codes(7)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(103)
SNOMED CT
- Psoriasis9014002
- Hypertrophy of nail30654002
- Nail hypertrophy30654002
- Nail overgrowth30654002
- OX - Onychauxic30654002
- Onychauxis30654002
- PA (Psoriatic arthritis)156370009
- PsA (Psoriatic arthritis)156370009
- Psoriatic arthritis156370009
- Unstable psoriasis238601002
- Psoriasis of nail238604005
- Psoriatic nail involvement238604005
- Psoriasis of scalp238608008
- Scalp psoriasis238608008
- Psoriasiform drug eruption238988008
- Juvenile psoriatic arthritis239802003
- Juvenile psoriatic arthritis with psoriasis239803008
- Psoriasis of vulva402314003
- Vulval psoriasis402314003
- Penile psoriasis402315002
- Psoriasis of penis402315002
- Generalised psoriasis402317005
- Generalized psoriasis402317005
- Psoriasis of scalp margin402319008
- Facial psoriasis402320002
- Psoriasis of face402320002
- Non-pustular psoriasis of hands402321003
- Non-pustular psoriasis of hands and feet402324006
- Drug-exacerbated psoriasis402325007
- Early onset psoriasis type 1402329001
- Onset of psoriasis in infancy (<1 year)402330006
- Onset of psoriasis in childhood (1-10 years)402331005
- Onset of psoriasis in adolescence (10-20 years)402332003
- Onset of psoriasis in early adulthood (20-40 years)402333008
- Late onset psoriasis type 2402334002
- Familial psoriasis402335001
- Tranebjaerg Svejgaard syndrome719810000
- X-linked intellectual disability with seizure and psoriasis syndrome719810000
- Anogenital psoriasis721538000
- Psoriasis of anogenital region721538000
- Exacerbation of psoriasis due to human immunodeficiency virus infection1052325005
- Psoriasis exacerbated by human immunodeficiency virus infection1052325005
- Disorder of skin due to human immunodeficiency virus infection1148863007
- Skin disease due to human immunodeficiency virus infection1148863007
- Hypertrophy of nail due to psoriasis1256080008
- Psoriatic nail hypertrophy1256080008
- Exacerbation of psoriasis1296646001
UMLS
Clinical Terms
- PsA (Psoriatic arthritis)
- Hypertrophy of nail
- Onset of psoriasis in infancy (<1 year)
- Juvenile psoriatic arthritis with psoriasis
- Psoriasis of face
- psoriases
- Skin disease due to human immunodeficiency virus infection
- psoriasi
- Anogenital psoriasis
- Psoriasis of scalp margin
- Psoriasis exacerbated by human immunodeficiency virus infection
- Juvenile psoriatic arthritis
- OX - Onychauxic
- Onset of psoriasis in early adulthood (20-40 years)
- Hypertrophy of nail due to psoriasis
- Exacerbation of psoriasis due to human immunodeficiency virus infection
- Onychauxis
- Psoriasis of vulva
- Tranebjaerg Svejgaard syndrome
- Psoriasis of nail
- Drug-exacerbated psoriasis
- Non-pustular psoriasis of hands
- Psoriatic nail hypertrophy
- Generalised psoriasis
- Vulval psoriasis
- Disorder of skin due to human immunodeficiency virus infection
- Psoriasis of penis
- Psoriasiform drug eruption
- Nail hypertrophy
- Psoriatic nail involvement
- Scalp psoriasis
- Onset of psoriasis in adolescence (10-20 years)
- Penile psoriasis
- Early onset psoriasis type 1
- Psoriasis (disorder)
- Exacerbation of psoriasis
- PA (Psoriatic arthritis)
- Late onset psoriasis type 2
- Psoriasis of scalp
- Unstable psoriasis
- Facial psoriasis
- Non-pustular psoriasis of hands and feet
- Psoriasis of anogenital region
- Psoriatic arthritis
- X-linked intellectual disability with seizure and psoriasis syndrome
- Generalized psoriasis
- Onset of psoriasis in childhood (1-10 years)
- Nail overgrowth
- Familial psoriasis
Frequently Asked Questions
What is the ICD-10 code for psoriasis, unspecified?
The ICD-10-CM code for psoriasis, unspecified is L40.9. The full clinical description is "Psoriasis, unspecified". L40.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code L40.9 mean?
ICD-10-CM code L40.9 represents “Psoriasis, unspecified”. It is classified under Chapter 12: Diseases of the Skin and Subcutaneous Tissue and is a billable/specific code that can be used on a claim.
Is L40.9 a billable code?
Yes, L40.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is L40.9 in?
L40.9 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What SNOMED CT codes does L40.9 map to?
L40.9 maps to 30 SNOMED CT concepts: 721538000, 1148863007, 402325007, 402329001, 1296646001, and 25 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for L40.9?
L40.9 is linked to 1 UMLS Concept Unique Identifier: C0033860. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does L40.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like psoriasis, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of L40.9?
L40.9 maps to the ICD-11 code: EA90.Z (Psoriasis of unspecified type).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.