L50.9
BillableUrticaria, unspecified
Urticaria, unspecified
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 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(8)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(74)
SNOMED CT
- Urticarial skin test reaction68128000
- Injection site edema95392007
- Injection site oedema95392007
- Injection site urticaria95394008
- Urticaria126485001
- Hives247472004
- Nettle rash247472004
- Urticarial rash247472004
- Weal247472004
- Welt247472004
- Wheal247472004
- Acute urticaria402408009
- Angio-oedema and/or urticaria404177007
- Angioedema and/or urticaria404177007
UMLS
- HivesC0042109
- Rash urticarialC0042109
- Unspecified urticariaC0042109
- UrticariaC0042109
- Urticaria (disorder)C0042109
- Urticaria (morphologic abnormality)C0042109
- Urticaria NOSC0042109
- Urticaria, unspecifiedC0042109
- Urticarial WhealC0042109
- Urticarial WhealsC0042109
- Urticarial rashC0042109
- UrticariasC0042109
- Urticated rashC0042109
- UrticationC0042109
- Wheal, UrticarialC0042109
- Wheals, UrticarialC0042109
- hiveC0042109
- hivedC0042109
- hivesC0042109
- hivingC0042109
- nettle rashC0042109
- nettles rashC0042109
- rash nettleC0042109
- urticariaC0042109
- urticaria nosC0042109
- urticarialC0042109
- urticarial rashC0042109
- urticariasC0042109
- weltC0042109
Clinical Terms
- rash nettle
- Angio-oedema and/or urticaria
- Injection site edema
- Injection site oedema
- Acute urticaria
- Injection site urticaria
- Angioedema and/or urticaria
- Nettle rash
- Urticarial Wheals
- urticaria nos
- Unspecified urticaria
- hived
- urticarial
- Urticated rash
- Urticarial rash
- Urticaria (disorder)
- welt
- Weal
- Rash urticarial
- Urticaria (morphologic abnormality)
- nettles rash
- hives
- Urticarial Wheal
- Urtication
- Urticarial skin test reaction
- hive
- hiving
- Wheal
- Wheals, Urticarial
- Urticarias
- Wheal, Urticarial
Frequently Asked Questions
What is the ICD-10 code for urticaria, unspecified?
The ICD-10-CM code for urticaria, unspecified is L50.9. The full clinical description is "Urticaria, unspecified". L50.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code L50.9 mean?
ICD-10-CM code L50.9 represents “Urticaria, 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 L50.9 a billable code?
Yes, L50.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is L50.9 in?
L50.9 is in Chapter 12: Diseases of the Skin and Subcutaneous Tissue (codes L00-L99).
What codes cannot be used with L50.9?
L50.9 has Excludes1 notes indicating codes that cannot be used together with it, including: Lyme disease (A69.2-); rosacea (L71.-); allergic contact dermatitis (L23.-); and 9 more.
What SNOMED CT codes does L50.9 map to?
L50.9 maps to 7 SNOMED CT concepts: 402408009, 404177007, 247472004, 95392007, 95394008, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for L50.9?
L50.9 is linked to 1 UMLS Concept Unique Identifier: C0042109. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does L50.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like urticaria, 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 L50.9?
L50.9 maps to the ICD-11 code: EB0Y (Other specified urticarial disorders).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.