L50.6 is the authoritative medical code for Contact urticaria. This classification is used in medical billing and clinical recording to specify the clinical criteria for contact urticaria (ICD-10-CM L50.6), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Contact urticaria is a billable ICD-10-CM diagnosis code L50.6. Excludes1 (not coded here): allergic contact dermatitis L23.-; angioneurotic edema T78.3; giant urticaria T78.3; hereditary angio-edema D84.1; Quincke's edema T78.3; serum urticaria T80.6-; solar urticaria L56.3; urticaria neonatorum P83.8; urticaria papulosa L28.2; urticaria pigmentosa D47.01; Lyme disease A69.2-; rosacea L71.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for L50.6 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- allergic contact dermatitis L23.-
- angioneurotic edema T78.3
- giant urticaria T78.3
- hereditary angio-edema D84.1
- Quincke's edema T78.3
- serum urticaria T80.6-
- solar urticaria L56.3
- urticaria neonatorum P83.8
- urticaria papulosa L28.2
- urticaria pigmentosa D47.01
- Lyme disease A69.2-
- rosacea L71.-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with L50.6?
Per Excludes1 instructions, L50.6 must not be reported with: allergic contact dermatitis (L23.-); angioneurotic edema (T78.3); giant urticaria (T78.3); hereditary angio-edema (D84.1).
Codes in This Family (9)
Official ICD-10-CM classifications in the same code family as L50.6, with their registry titles.
- L50 — Urticaria
- L50.0 — Allergic urticaria
- L50.1 — Idiopathic urticaria
- L50.2 — Urticaria due to cold and heat
- L50.3 — Dermatographic urticaria
- L50.4 — Vibratory urticaria
- L50.5 — Cholinergic urticaria
- L50.8 — Other urticaria
- L50.9 — Urticaria, unspecified
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Urticaria, contact
- Urticaria, due to, plants
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code L49.6
Exfoliation due to erythematous condition involving 60-69 percent of body surface