L50.1
L50.1: Idiopathic urticaria
Billable / specific codeICD-10-CM
L50.1 is a billable, specific ICD-10-CM code for idiopathic urticaria. It is valid for submission on a claim.
Check L50.1 with the rest of the claim: free scrubberExcludes1 inherited from the categories above L50.1
A category’s note binds every code beneath it.
Other codes that can never be billed with L50.1
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
L50.1 is named in 13 Medicare coverage policies: 13 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52448Billing and Coding: Omalizumab and biosimilar, OMLYCLO® (omalizumab-igec)
- A56558Billing and Coding: Allergy Testing
- A57531Billing and Coding: Allergy Testing
- A60360Billing and Coding: Allergy Diagnostic Testing
Alphabetic index entries that lead here
- Urticaria›idiopathic
- Urticaria›nonallergic
Code history
Unchanged in every release from FY2024 to FY2027.