L99
BillableOth disorders of skin, subcu in diseases classd elswhr
Other disorders of skin and subcutaneous tissue in diseases classified elsewhere
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
Code First
The underlying condition must be sequenced before this code
- underlying disease, such as:
- amyloidosis (E85.-)
Also Known As / Clinical Terms
SNOMED CT
- Small vessel thrombosis of skin65366005
- Metabolic and nutritional disorders affecting skin238944001
- Systemic disease affecting skin238980001
- Acute Chagas' disease240653009
- Chagas' exanthem240656001
- Trypanosomiasis affecting skin402142006
- Rheumatoid arthritis with neutrophilic dermatitis402432002
- Rheumatoid neutrophilic dermatitis402432002
- Cutaneous complication of rheumatoid disease402434001
- Dermatosis resulting from vascular insufficiency402665000
- Cutaneous complication of systemic sclerosis402713007
- Amyloidosis limited to skin402720000
- Spinal cord defect affecting skin402743009
- Skin lesion in drug addict402765009
- Skin involvement in bacterial endocarditis402972001
- African trypanosomiasis affecting skin403138002
- Non-specific cutaneous reaction in Hodgkin disease404158005
- Non-specific cutaneous reaction in Hodgkin's disease404158005
- Skin disorder with AIDS (acquired immunodeficiency syndrome)421394009
- Skin disorder with acquired immunodeficiency syndrome421394009
- Disorder of skin co-occurrent with human immunodeficiency virus infection713340000
- Primary localised cutaneous amyloidosis733729003
- Primary localized cutaneous amyloidosis733729003
- Amyloidosis cutis dyschromia764849002
- Amyloidosis cutis dyschromica764849002
- HIV modified skin disease1142055000
- Human immunodeficiency virus modified skin disease1142055000
- Behcet disease of skin1144914004
- Cutaneous Behcet disease1144914004
- Disorder of skin due to human immunodeficiency virus infection1148863007
- Skin disease due to human immunodeficiency virus infection1148863007
Frequently Asked Questions
What is ICD-10 code L99?
ICD-10-CM code L99 represents "Other disorders of skin and subcutaneous tissue in diseases classified elsewhere". It is a billable/specific code that can be used on a claim.
Is L99 a billable code?
Yes, L99 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is L99 in?
L99 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What codes cannot be used with L99?
L99 has Excludes1 notes indicating codes that cannot be used together with it, including: skin disorders in diabetes (E08-E13 with .62-); skin disorders in gonorrhea (A54.89); skin disorders in syphilis (A51.31, A52.79).
What SNOMED CT codes does L99 map to?
L99 maps to 23 SNOMED CT concepts: 240653009, 403138002, 764849002, 402720000, 1144914004, and 18 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for L99?
L99 is linked to 1 UMLS Concept Unique Identifier: C0477530. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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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.