ICD-10-CM
ICD-10 code for Hives: L50.9
The CDC title for "Hives" is L50 (Urticaria), a header that is not billable. When nothing more specific is documented, the billable code is L50.9, Urticaria, unspecified.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under L50, then other CDC titles that name urticaria
A header groups codes and is not billed. A billable code is one you can report.
- L50UrticariaHeader
- L50.0Allergic urticariaBillable
- L50.1Idiopathic urticariaBillable
- L50.2Urticaria due to cold and heatBillable
- L50.3Dermatographic urticariaBillable
- L50.4Vibratory urticariaBillable
- L50.5Cholinergic urticariaBillable
- L50.6Contact urticariaBillable
- L50.8Other urticariaBillable
- L50.9Urticaria, unspecifiedBillable
- L56.3Solar urticariaBillable
- O26.86Pruritic urticarial papules and plaques of pregnancy (PUPPP)Billable
Excludes1
Excludes1 means these codes are not reported together.
From L50. A note on a category applies to every code under it.
Related conditions
Related pages
- L50.9 code detailsNotes, nearby codes, CMS-HCC group
- Category L50Every code under it
- Chapter 12Diseases of the skin and subcutaneous tissue
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Hives?
The CDC title for "Hives" is L50 (Urticaria), a header that is not billable. When nothing more specific is documented, the billable code is L50.9, Urticaria, unspecified.
Is L50.9 billable?
Yes. L50.9 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to L50.9?
The CDC tabular list gives 10 Excludes1 notes (not coded together) for L50.9 and the categories above it. They are listed on this page.
What chapter is L50.9 in?
Chapter 12. Diseases of the skin and subcutaneous tissue.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.