2027 ICD-10-CM Diagnosis Code L24.4Irritant contact dermatitis due to drugs in contact with skin
ICD-10-CM Codes›L00–L99›L20-L30›L24
- Billable — Valid for Submission
- Not Chronic
L24.4 is a billable ICD-10-CM diagnosis code for irritant contact dermatitis due to drugs in contact with skin. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 606 through 607. Coders also document this condition as irritant contact dermatitis caused by drug in contact with skin. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Contact dermatitis and Drug induced or toxic related condition.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Irritant contact dermatitis caused by drug in contact with skin
- Irritant contact dermatitis caused by emollient substance
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to L24.4: its own notes plus those printed at L24, block L20-L30, and Chapter 12. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
Notes
General instructions on how these codes are used.
- In this block the terms dermatitis and eczema are used synonymously and interchangeably.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name L24.4, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming L24.4: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 5
These codes carry an Excludes2 note naming L24.4: its condition is not part of those codes, and both may be reported when the patient has both.
- T81 Complications of procedures, not elsewhere classifieddermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1)
- T88 Other complications of surgical and medical care, not elsewhere classifieddermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1)
- L23 Allergic contact dermatitisirritant contact dermatitis (L24.-) names L24.-, which includes this code
- L27 Dermatitis due to substances taken internally
- L30 Other and unspecified dermatitis
Code First 2
These codes say to code first a condition named in the note, and L24.4 is one of the conditions named.
- F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere
- Block T36-T50 Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Irritant Contact Dermatitis
an inflammatory skin condition caused by direct contact between the skin and an irritating substance. it is typically manifested by erythema, mild edema, and scaling at the affected site.
Patient EducationClinical
Drug Reactions
Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions, such as drug interactions, side effects, and allergies.
The full article covers:
- What is a drug interaction?
- What are side effects?
- What are drug allergies?
- How can I stay safe when taking medicines?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert L24.4 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About L24.4Overview
What is the ICD-10 code for irritant contact dermatitis due to drugs in contact with skin?
The ICD-10-CM code for irritant contact dermatitis due to drugs in contact with skin is L24.4 (sometimes written as L244). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is L24.4 (Irritant contact dermatitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report irritant contact dermatitis due to drugs in contact with skin on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does L24.4 group to?
When irritant contact dermatitis due to drugs in contact with skin is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.
Can L24.4 be reported with T78.40?
Not as a rule. The Excludes1 note at L24, which applies to L24.4, lists "allergy NOS (T78.40)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
