Papulosquamous disorders in diseases classified elsewhere
In Papulosquamous disorders (L40-L45), chapter 12: Diseases of the Skin and Subcutaneous Tissue
- L45 is billable and valid on claims for FY 2027. If the record has more detail, check the other codes under L40-L45 below.
- As a secondary diagnosis it is not a CC or MCC, so it doesn't raise the MS-DRG payment.
- Doesn't count toward a Medicare Advantage risk score (no HCC in V28).
- AHRQ's Chronic Condition Indicator classes it as not chronic (an acute or short-term condition).
- Can't be the principal diagnosis: code the underlying condition first. (Manifestation list)
Also indexed as: Disorder, papulosquamous, in diseases classified elsewhere
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Instructional notes
Code first: code the underlying condition first, then this code
- underlying disease.
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers assigning pressure ulcer codes by site and stage, including unstageable, healing, healed, and progressing ulcers, and coding healing or progressing non-pressure chronic ulcers.
- Pressure ulcer stage codes (page 58)
- Non-Pressure Chronic Ulcers (page 60)
Other codes under L40-L45
Papulosquamous disorders (L40-L45)
- L40Psoriasis
- L41Parapsoriasis
- L42Pityriasis rosea
- L43Lichen planus
- L44Other papulosquamous disorders
- L45Papulosquamous disorders in diseases classified elsewhere(this code)
L45 MS-DRGs
As the principal diagnosis, L45 groups to MS-DRG 606 or 607 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
Related conditions
Grouped by AHRQ's Clinical Classifications Software Refined (CCSR), which sorts every diagnosis code into clinically meaningful categories.
L45 is in Other specified inflammatory condition of skin (SKN002), with 164 codes. Others in it:
- B65.3 Cercarial dermatitis
- E08.620 Diabetes mellitus due to underlying condition with diabetic dermatitis
- E09.620 Drug or chemical induced diabetes mellitus with diabetic dermatitis
- E10.620 Type 1 diabetes mellitus with diabetic dermatitis
- E11.620 Type 2 diabetes mellitus with diabetic dermatitis
- E13.620 Other specified diabetes mellitus with diabetic dermatitis
- L10.0 Pemphigus vulgaris
- L10.1 Pemphigus vegetans
Medicare coverage articles listing L45
These 2 Medicare billing and coding articles list L45 as a diagnosis that supports medical necessity for the services they cover. From the CMS Medicare Coverage Database; check your own contractor's article before billing.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
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 more about eczema on MedlinePlusRashes
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 more about rashes on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.
ICD-9-CM equivalent
Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).
- 696.8 Other psoriasis and similar disorders (approximate)
- 709.8 Other specified disorders of skin (approximate)