2027 ICD-10-CM Diagnosis Code L45Papulosquamous disorders in diseases classified elsewhere

ICD-10-CM Codes›L00–L99›L40-L45›L45

ICD-10-CM L45
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L45 is a billable ICD-10-CM diagnosis code for papulosquamous disorders in diseases classified elsewhere. 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. The code is a manifestation code that cannot be reported as the principal diagnosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified inflammatory condition of skin.

Code Identity

ICD-10-CM Code
L45
Billable Status
Yes — Valid for Submission
Code Describes
Papulosquamous disorders in diseases classified elsewhere
Short Description
Papulosquamous disorders in diseases classified elsewhere
Same as the full description in the CMS dataset.
Chapter
L40-L45
Papulosquamous disorders

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL40-L45Papulosquamous disorders
CategoryL45Papulosquamous disorders in diseases classified elsewhere
This CodeL45Papulosquamous disorders in diseases classified elsewhere

Code EditsBilling

Medicare Code Editor checks that affect claim validity for L45.

Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L45: its own notes plus those printed at Chapter 12. A note printed at a category, block or chapter applies to every code under it.

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 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.-)

Code First

The underlying condition named in the note is sequenced before this code.

  • underlying disease.

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 SKN002
Other specified inflammatory condition of skin
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Eczema

Eczema is a term for several different types of skin swelling. Eczema is also called dermatitis. Most types cause dry, itchy skin and rashes on the face, inside the elbows and behind the knees, and on the hands and feet. Scratching the skin can cause it to turn red, and to swell and itch even more.

Read the full article at MedlinePlus

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

Convert L45 to ICD-9-CMHistory

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

ICD-9-CM
696.8 Psorias related dis NEC
Approximate The match is approximate rather than exact.
ICD-9-CM
709.8 Skin disorders NEC
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 L45Overview

What is the ICD-10 code for papulosquamous disorders in diseases classified elsewhere?

The ICD-10-CM code for papulosquamous disorders in diseases classified elsewhere is L45. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is L45 (Papulosquamous disorders in diseases classified elsewhere) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report papulosquamous disorders in diseases classified elsewhere on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does L45 group to?

On inpatient claims, papulosquamous disorders in diseases classified elsewhere maps to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.

Can L45 be a principal diagnosis?

No. This is a manifestation code: papulosquamous disorders in diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.

What is coded first with L45?

The Code First note reads: underlying disease.. When one of these applies, it is sequenced before L45.