Non-Billable / Non-Specific Code
ICD-10-CM L23 is the diagnosis code for Allergic contact dermatitis. This code falls under the section "Dermatitis and eczema" within Chapter 12 â Diseases of the skin and subcutaneous tissue (L00-L99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as L23. They are mutually exclusive:
The following conditions are not included in L23. If the patient has both, code each condition separately:
Understanding where L23 sits in the ICD-10-CM classification helps ensure proper coding:
No, L23 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
L23 is the ICD-10-CM diagnosis code for "Allergic contact dermatitis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
L23 is located in Section L20-L30 â "Dermatitis and eczema" within Chapter 12 of the ICD-10-CM Tabular List.
L23 has 10 sub-code(s) that provide more specific detail: L23.0, L23.1, L23.2, L23.3, L23.4 and more.
Use L23 when the patients documented diagnosis matches "Allergic contact dermatitis" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Allergic contact dermatitis is L23.
No, L23 is non-billable. Use a more specific sub-code for primary diagnosis billing.
L23 is in Chapter 12 of the ICD-10-CM Tabular List.
Type 1 Excludes for L23 include: allergy NOS (T78.40); contact dermatitis NOS (L25.9); dermatitis NOS (L30.9).
Yes, L23 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.