Is L23.6 a billable ICD-10-CM code?

Yes. L23.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does L23.6 sit in the tabular list?

Diseases of the skin and subcutaneous tissue (L00-L99), in the block Dermatitis and eczema (L20-L30).

L23.6

L23.6 — Allergic contact dermatitis due to food in contact with the skin

Billable / specific codeICD-10-CM

L23.6 is a billable, specific ICD-10-CM code for allergic contact dermatitis due to food in contact with the skin. It is valid for submission on a claim.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

dermatitis due to ingested food (L27.2)

Other codes that can never be billed with L23.6

These codes carry an Excludes1 note pointing at L23.6. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L23.6 alone.

T61Toxic effect of noxious substances eaten as seafood
T62Toxic effect of other noxious substances eaten as food

Risk adjustment

L23.6 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

L23.6 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 L23.6 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 L23.6.

Itch, itching›baker's
Allergy, allergic›food NEC›in contact with skin
Dermatitis›contact›allergic›due to›food in contact with skin

Related codes at this level

Codes that share L23. If L23.6 is not quite right, the correct code is usually one of these.

Questions about L23.6

Is L23.6 a billable ICD-10-CM code?: Yes. L23.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does L23.6 sit in the tabular list?: Diseases of the skin and subcutaneous tissue (L00-L99), in the block Dermatitis and eczema (L20-L30).