2026 ICD-10-CM Diagnosis Code L23.3Allergic contact dermatitis due to drugs in contact with skin
ICD-10-CM Codes›L00–L99›L20-L30›L23
- Billable — Valid for Submission
- Not Chronic
L23.3 is a billable ICD-10-CM diagnosis code for allergic contact dermatitis due to drugs in contact with skin. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. Coders also document this condition as allergic contact dermatitis caused by antiseptic and/or disinfectant. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Allergic reactions and Contact dermatitis.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Allergic contact dermatitis caused by antiseptic and/or disinfectant
- Allergic contact dermatitis caused by drug in contact with skin
- Delayed photoallergic dermatitis
- Occupational allergic contact dermatitis caused by antiseptic and/or disinfectant
- Photoallergic contact dermatitis due to non-steroidal anti-inflammatory drug
- Photoallergic dermatitis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Use Additional Code
Type 2 Excludes
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Dermatitis (eczematous) - L30.9
- contact (occupational) - L25.9
- due to
- drugs in contact with skin - L23.3
- due to
- drugs and medicaments (generalized) (internal use) - L27.0
- in contact with skin - L25.1
- allergic - L23.3
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Dermatitis(eczematous)
- contact (occupational)
- allergic
- due to
- drugs in contact with skin
- Dermatitis(eczematous)
- due to
- drugs and medicaments (generalized) (internal use)
- in contact with skin
- allergic
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Allergic Contact Dermatitis
an inflammatory skin condition caused by an immune response to direct contact between the skin and an allergen. it consists of a delayed type of allergic reaction at the affected site with resulting red, swollen, and blistered skin that may itch or leak.
Patient EducationClinical
Allergy
An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert L23.3 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About L23.3Overview
Is L23.3 (Allergic contact dermatitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report allergic contact dermatitis due to drugs in contact with skin on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does L23.3 group to?
When allergic contact dermatitis due to drugs in contact with skin is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of L23.3?
Under the General Equivalence Mappings, allergic contact dermatitis due to drugs in contact with skin converts to ICD-9-CM 692.3 (topical med dermatitis). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
