ICD-10-CM Code For Unspecified Contact Dermatitis: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group L25 includes contact dermatitis reactions that are unspecified as to cause or agent and covers eczematous skin inflammation resulting from external exposures. These ICD-10-CM diagnosis codes are used to document clinical encounters for dermatitis where the specific allergen or irritant is not identified, capturing disease extent, severity, and any complications. Accurate coding within the ICD-10-CM L25 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM L25: Unspecified Contact Dermatitis Overview

The ICD-10-CM L25 group captures contact dermatitis reactions that are not otherwise specified, typically involving inflammatory skin reactions from external agents. These diagnoses target the integumentary system and reflect eczematous responses such as redness, itching, and vesiculation. Accurate coding matters for correct claim adjudication and ensures clinical records reflect the care provided.

When to Use

Use a code from this group when a patient presents with contact dermatitis symptoms but the clinician has not identified a specific irritant or allergen. Select the unspecified contact dermatitis code when documentation lacks details to assign a more specific contact dermatitis code.

ICD-10-CM Codes

8 rows

ICD-10-CM Code	Description
L25.0	Unspecified contact dermatitis due to cosmetics
L25.1	Unspecified contact dermatitis due to drugs in contact with skin
L25.2	Unspecified contact dermatitis due to dyes
L25.3	Unspecified contact dermatitis due to other chemical products
L25.4	Unspecified contact dermatitis due to food in contact with skin
L25.5	Unspecified contact dermatitis due to plants, except food
L25.8	Unspecified contact dermatitis due to other agents
L25.9	Unspecified contact dermatitis, unspecified cause

DRG Codes

2 rows

DRG Code	Description
606	Minor Skin Disorders with MCC
607	Minor Skin Disorders without MCC

Typical Clinical Scenarios

A middle-aged office worker presents to urgent care with a sudden, intensely pruritic, well-demarcated erythematous rash with vesicles on the dorsal hands and forearms after using a new latex-containing household cleaner for two days. The patient seeks immediate evaluation due to spreading blistering and discomfort interfering with work, and the history of recent exposure to a clear contactant supports an allergic contact dermatitis diagnosis from this group. Typical codes: L25.0, L25.2
An elderly nursing-home resident develops slowly progressive, poorly demarcated eczematous patches with lichenification on the forearms and neck over several months, attributed to repeated exposure to a fragranced body lotion and frequent bathing; the primary team asks dermatology for outpatient management of a chronic contact dermatitis. Because the condition is ongoing with repeated exposures and no specific identified occupational agent, a chronic or unspecified contact dermatitis code from the group is assigned. Typical codes: L25.1, L25.9
A young construction worker presents to the emergency department with confluent erythema, edema, and secondary oozing on both hands after a single high‑concentration exposure to industrial adhesive; acute inflammation is complicated by superimposed impetiginization requiring wound care and topical antibiotics. The acute, severe presentation following a known chemical contact prompts assignment of an acute contact dermatitis code from the group, with documentation of the complication noted separately as needed. Typical codes: L25.3, L25.5

Related Codes

L20-ATOPIC-DERMATITIS

ICD-10-CM Code For Atopic Dermatitis: Group Overview

L21-SEBORRHEIC-DERMATITIS

ICD-10-CM Code For Seborrheic Dermatitis: Group Overview

L22-DIAPER-DERMATITIS

ICD-10-CM Code For Diaper Dermatitis: Group Overview

L23-ALLERGIC-CONTACT-DERMATITIS

ICD-10-CM Code For Allergic Contact Dermatitis: Group Overview

L24-IRRITANT-CONTACT-DERMATITIS

ICD-10-CM Code For Irritant Contact Dermatitis: Group Overview

L26-EXFOLIATIVE-DERMATITIS

ICD-10-CM Code For Exfoliative Dermatitis: Group Overview

L27-DERMATITIS-DUE-TO-SUBSTANCES-TAKEN-INTERNALLY

ICD-10-CM Code For Dermatitis Due To Substances Taken Internally: Group Overview

L28-LICHEN-SIMPLEX-CHRONICUS-AND-PRURIGO

ICD-10-CM Code For Lichen Simplex Chronicus And Prurigo: Group Overview

L29-PRURITUS

ICD-10-CM Code For Pruritus: Group Overview

L30-OTHER-AND-UNSPECIFIED-DERMATITIS

ICD-10-CM Code For Other And Unspecified Dermatitis: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

8 rows

ICD-10-CM Code	Description
L25.0	Unspecified contact dermatitis due to cosmetics
L25.1	Unspecified contact dermatitis due to drugs in contact with skin
L25.2	Unspecified contact dermatitis due to dyes
L25.3	Unspecified contact dermatitis due to other chemical products
L25.4	Unspecified contact dermatitis due to food in contact with skin
L25.5	Unspecified contact dermatitis due to plants, except food
L25.8	Unspecified contact dermatitis due to other agents
L25.9	Unspecified contact dermatitis, unspecified cause

DRG Codes

2 rows

DRG Code	Description
606	Minor Skin Disorders with MCC
607	Minor Skin Disorders without MCC

Typical Clinical Scenarios

A middle-aged office worker presents to urgent care with a sudden, intensely pruritic, well-demarcated erythematous rash with vesicles on the dorsal hands and forearms after using a new latex-containing household cleaner for two days. The patient seeks immediate evaluation due to spreading blistering and discomfort interfering with work, and the history of recent exposure to a clear contactant supports an allergic contact dermatitis diagnosis from this group. Typical codes: L25.0, L25.2
An elderly nursing-home resident develops slowly progressive, poorly demarcated eczematous patches with lichenification on the forearms and neck over several months, attributed to repeated exposure to a fragranced body lotion and frequent bathing; the primary team asks dermatology for outpatient management of a chronic contact dermatitis. Because the condition is ongoing with repeated exposures and no specific identified occupational agent, a chronic or unspecified contact dermatitis code from the group is assigned. Typical codes: L25.1, L25.9
A young construction worker presents to the emergency department with confluent erythema, edema, and secondary oozing on both hands after a single high‑concentration exposure to industrial adhesive; acute inflammation is complicated by superimposed impetiginization requiring wound care and topical antibiotics. The acute, severe presentation following a known chemical contact prompts assignment of an acute contact dermatitis code from the group, with documentation of the complication noted separately as needed. Typical codes: L25.3, L25.5

Related Codes

L20-ATOPIC-DERMATITIS

ICD-10-CM Code For Atopic Dermatitis: Group Overview

L21-SEBORRHEIC-DERMATITIS

ICD-10-CM Code For Seborrheic Dermatitis: Group Overview

L22-DIAPER-DERMATITIS

ICD-10-CM Code For Diaper Dermatitis: Group Overview

L23-ALLERGIC-CONTACT-DERMATITIS

ICD-10-CM Code For Allergic Contact Dermatitis: Group Overview

L24-IRRITANT-CONTACT-DERMATITIS

ICD-10-CM Code For Irritant Contact Dermatitis: Group Overview

L26-EXFOLIATIVE-DERMATITIS

ICD-10-CM Code For Exfoliative Dermatitis: Group Overview

L27-DERMATITIS-DUE-TO-SUBSTANCES-TAKEN-INTERNALLY

ICD-10-CM Code For Dermatitis Due To Substances Taken Internally: Group Overview

L28-LICHEN-SIMPLEX-CHRONICUS-AND-PRURIGO

ICD-10-CM Code For Lichen Simplex Chronicus And Prurigo: Group Overview

L29-PRURITUS

ICD-10-CM Code For Pruritus: Group Overview

L30-OTHER-AND-UNSPECIFIED-DERMATITIS

ICD-10-CM Code For Other And Unspecified Dermatitis: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Unspecified Contact Dermatitis: Group Overview

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ICD-10-CM L25: Unspecified Contact Dermatitis Overview

ICD-10-CM Code For Unspecified Contact Dermatitis: Group Overview

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ICD-10-CM L25: Unspecified Contact Dermatitis Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What conditions does the ICD-10-CM L25 group capture?

Which specific codes are included in the L25 group?

How does accurate coding within ICD-10-CM L25 affect reimbursement?

Which DRGs are related to the L25 diagnosis group?

When should `L25.9` be used instead of other L25 codes?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What conditions does the ICD-10-CM L25 group capture?

Which specific codes are included in the L25 group?

How does accurate coding within ICD-10-CM L25 affect reimbursement?

Which DRGs are related to the L25 diagnosis group?

When should `L25.9` be used instead of other L25 codes?

References