2027 ICD-10-CM Diagnosis Code L85.0Acquired ichthyosis

ICD-10-CM Codes›L00–L99›L80-L99›L85

ICD-10-CM L85.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L85.0 is a billable ICD-10-CM diagnosis code for acquired ichthyosis. 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 Other specified and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L85.0
Billable Status
Yes — Valid for Submission
Code Describes
Acquired ichthyosis
Short Description
Acquired ichthyosis
Same as the full description in the CMS dataset.
Parent Code
L85
Other epidermal thickening

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL85Other epidermal thickening
This CodeL85.0Acquired ichthyosis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired ichthyosis
  • Acquired paraneoplastic ichthyosis
  • Senile ichthyosis
  • Senile xeroderma
  • Xeroderma

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L85.0: its own notes plus those printed at L85 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.

  • congenital ichthyosis (Q80.-)

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.

From L85 Other epidermal thickening applies to 6 codes
  • hypertrophic disorders of the skin (L91.-)
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.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

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 SKN007
Other specified and unspecified skin disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Ichthyosis Acquisita

    a non-hereditary form of ichthyosis characterized by plate-like scales on the legs, arms and occasionally the torso.

Patient EducationClinical

Rashes

A rash is an area of irritated or swollen skin. Many rashes are itchy, red, painful, and irritated. Some rashes can also lead to blisters or patches of raw skin. Rashes are a symptom of many different medical problems. Other causes include irritating substances and allergies. Certain genes can make people more likely to get rashes.

Read the full article at MedlinePlus

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

Convert L85.0 to ICD-9-CMHistory

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

ICD-9-CM
701.1 Keratoderma, acquired
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 L85.0Overview

What is the ICD-10 code for acquired ichthyosis?

The ICD-10-CM code for acquired ichthyosis is L85.0 (sometimes written as L850). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is L85.0 (Other epidermal thickening) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acquired ichthyosis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does L85.0 group to?

When acquired ichthyosis 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 L85.0 be reported with a code from Q80?

Not as a rule. The Excludes1 note on L85.0 lists "congenital ichthyosis (Q80.-)". 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 L85.0?

Under the General Equivalence Mappings, acquired ichthyosis converts to ICD-9-CM 701.1 (keratoderma, acquired). The mapping is approximate, so confirm the match fits the documentation.