2027 ICD-10-CM Diagnosis Code L25.5Unspecified contact dermatitis due to plants, except food

ICD-10-CM Codes›L00–L99›L20-L30›L25

ICD-10-CM L25.5
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L25.5 is a billable ICD-10-CM diagnosis code for unspecified contact dermatitis due to plants, except food. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Contact dermatitis.

Code Identity

ICD-10-CM Code
L25.5
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified contact dermatitis due to plants, except food
Short Description
Unspecified contact dermatitis due to plants, except food
Same as the full description in the CMS dataset.
Parent Code
Unspecified contact dermatitis

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL20-L30Dermatitis and eczema
CategoryL25Unspecified contact dermatitis
This CodeL25.5Unspecified contact dermatitis due to plants, except food

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Allergic contact dermatitis caused by Arnica
  • Allergic contact dermatitis caused by plant material
  • Allergic contact dermatitis caused by urushiol from Chinese lacquer tree
  • Cactus dermatitis
  • Contact dermatitis caused by plants
  • Contact dermatitis caused by poison primrose
  • Contact dermatitis caused by ragweed
  • Contact dermatitis caused by stinking willie
  • Contact dermatitis caused by urushiol
  • Contact dermatitis caused by urushiol from Atlantic poison oak
  • Contact dermatitis caused by urushiol from Eastern poison ivy
  • Contact dermatitis caused by urushiol from Pacific poison oak
  • Contact dermatitis caused by urushiol from poison oak
  • Contact dermatitis caused by urushiol from poison sumac
  • Contact dermatitis caused by urushiol from Toxicodendron

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L25.5: its own notes plus those printed at L25, 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.

On L25.5 itself
From L25 Unspecified contact dermatitis applies to 8 codes
  • allergic contact dermatitis (L23.-)
  • allergy NOS (T78.40)
  • dermatitis NOS (L30.9)
  • irritant contact dermatitis (L24.-)

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.

On L25.5 itself
  • allergy NOS due to pollen (J30.1)
From L25 Unspecified contact dermatitis applies to 8 codes
  • dermatitis due to ingested substances (L27.-)
  • dermatitis of eyelid (H01.1-)
  • eczema of external ear (H60.5-)
  • perioral dermatitis (L71.0)
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
From Block L20-L30 Dermatitis and eczema applies to 74 codes
  • chronic (childhood) granulomatous disease (D71-)
  • dermatitis gangrenosa (L08.0)
  • dermatitis herpetiformis (L13.0)
  • dry skin dermatitis (L85.3)
  • factitial dermatitis (L98.1)
  • perioral dermatitis (L71.0)
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • stasis dermatitis (I87.2)
From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • 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.-)

Notes

General instructions on how these codes are used.

From Block L20-L30 Dermatitis and eczema applies to 74 codes
  • 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 L25.5, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming L25.5: they are not reported together with it, unless the two conditions are unrelated.

  • L53 Other erythematous conditions
    erythema due to external agents in contact with skin (L23-L25) names L23-L25, which includes this code
  • T78.4 Other and unspecified allergy
    dermatitis (L23-L25, L27.-) names L23-L25, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming L25.5: its condition is not part of those codes, and both may be reported when the patient has both.

  • L27 Dermatitis due to substances taken internally
    contact dermatitis (L23-L25) names L23-L25, which includes this code
  • L30 Other and unspecified dermatitis
    contact dermatitis (L23-L25) names L23-L25, which includes this code

Code First 2

These codes say to code first a condition named in the note, and L25.5 is one of the conditions named.

  • F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere
    dermatitis (L23-L25) names L23-L25, which includes this code
  • Block T36-T50 Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances
    contact dermatitis (L23-L25) names L23-L25, which includes this code

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.

CCSR SKN005
Contact dermatitis
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Poison Ivy, Oak, and Sumac

If you spend time outdoors, chances are you have been bothered by poison ivy, poison oak or poison sumac at some point. Most people are sensitive to the plants' oily sap. The sap is in the root, stems, leaves and fruit of these plants. If it gets on your skin, it causes a blistering skin rash.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert L25.5 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
692.6 Dermatitis due to plant
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L25.5Overview

What is the ICD-10 code for unspecified contact dermatitis due to plants, except food?

The ICD-10-CM code for unspecified contact dermatitis due to plants, except food is L25.5 (sometimes written as L255). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is L25.5 (Unspecified contact dermatitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified contact dermatitis due to plants, except food on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does L25.5 group to?

When unspecified contact dermatitis due to plants, except food 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 L25.5 be reported with L50.9?

Not as a rule. The Excludes1 note on L25.5 lists "nettle rash (L50.9)". 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).

What is the ICD-9 equivalent of L25.5?

Under the General Equivalence Mappings, unspecified contact dermatitis due to plants, except food converts to ICD-9-CM 692.6 (dermatitis due to plant). The mapping is approximate, so confirm the match fits the documentation.