L23.0 — Allergic contact dermatitis due to metals
L23.0 is a billable, specific ICD-10-CM code for allergic contact dermatitis due to metals. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Allergic contact dermatitis due to chromium
- Allergic contact dermatitis due to nickel
Risk adjustment
L23.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
L23.0 is named in 10 Medicare coverage policies — 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56459Billing and Coding: Debridement Services
- A56558Billing and Coding: Allergy Testing
- A57181Billing and Coding: Allergy Testing
- A57473Billing and Coding: Allergy Testing
How L23.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L23.0.
- Dermatitis›contact›allergic›due to›chromium
- Dermatitis›contact›allergic›due to›metals
- Dermatitis›contact›allergic›due to›nickel
Related codes at this level
Codes that share L23. If L23.0 is not quite right, the correct code is usually one of these.
- L23.1Allergic contact dermatitis due to adhesives
- L23.2Allergic contact dermatitis due to cosmetics
- L23.3Allergic contact dermatitis due to drugs in contact with skin
- L23.4Allergic contact dermatitis due to dyes
- L23.5Allergic contact dermatitis due to other chemical products
- L23.6Allergic contact dermatitis due to food in contact with the skin
- L23.7Allergic contact dermatitis due to plants, except food
- L23.8Allergic contact dermatitis due to other agents
- L23.9Allergic contact dermatitis, unspecified cause
Questions about L23.0
- Is L23.0 a billable ICD-10-CM code?
- Yes. L23.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L23.0 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Dermatitis and eczema (L20-L30).