ICD-10-CM 2027 diagnosis code
L24.4Irritant contact dermatitis due to drugs in contact with skin
L24.4 is a valid, billable ICD-10-CM code for irritant contact dermatitis due to drugs in contact with skin. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Irritant contact dermatitis due to drugs in contact w skin
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About L24.4
L24.4 is the ICD-10-CM diagnosis code for irritant contact dermatitis due to drugs in contact with skin. It belongs to category L24 (irritant contact dermatitis), block L20-L30 (dermatitis and eczema) and chapter 12 (diseases of the skin and subcutaneous tissue). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within L24 (irritant contact dermatitis), L24.4 is specifically for irritant contact dermatitis due to drugs in contact with skin. Related codes cover due to detergents (L24.0), due to oils and greases (L24.1), due to solvents (L24.2), due to cosmetics (L24.3), due to other chemical products (L24.5), due to food in contact with skin (L24.6), due to plants, except food (L24.7), due to other agents (L24.8) and 3 more.
Use an additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 692.3 (contact dermatitis and other eczema due to drugs and medicines in contact with skin).
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to L24.4.
Broader instructions also apply from L20-L30 Dermatitis and eczema and Chapter 12: Diseases of the skin and subcutaneous tissue.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to L24.4.
Codes whose notes reference L24.4
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast
ICD-9-CM equivalent
Converter →- 692.3Contact dermatitis and other eczema due to drugs and medicines in contact with skinapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about L24.4
Is L24.4 billable?
- Yes. L24.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L24.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L24.4 as a principal diagnosis.
Is L24.4 a CC or MCC?
- No. L24.4 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does L24.4 group to?
- L24.4 is used in the MS-DRG v44.0 logic for MS-DRG 606 (Minor Skin Disorders with MCC) and MS-DRG 607 (Minor Skin Disorders without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for L24.4?
- The CMS General Equivalence Mappings map L24.4 to ICD-9-CM 692.3.