Atrophic disorders of skin (L90) ICD-10-CM
The L90 code range covers atrophic disorders of skin with 10 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the L90 Range 10 codes · 9 billable
- L90 Atrophic disorders of skinNon-billable
- L90.0 Lichen sclerosus et atrophicus
- L90.1 Anetoderma of Schweninger-Buzzi
- L90.2 Anetoderma of Jadassohn-Pellizzari
- L90.3 Atrophoderma of Pasini and Pierini
- L90.4 Acrodermatitis chronica atrophicans
- L90.5 Scar conditions and fibrosis of skin
- L90.6 Striae atrophicae
- L90.8 Other atrophic disorders of skin
- L90.9 Atrophic disorder of skin, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the L90 range.
Acute Kidney Injury
Abrupt reduction in kidney function. Acute kidney injury encompasses the entire spectrum of the syndrome including acute kidney failure; ACUTE KIDNEY TUBULAR NECROSIS; and other less severe conditions.
Anetoderma
Benign DERMATOSIS caused by a loss of dermal ELASTIC TISSUE resulting in localized sac-like areas of flaccid skin. It can be either primary (idiopathic) or secondary to other skin conditions, PENICILLAMINE use, or premature birth.
Lichen Sclerosus et Atrophicus
A chronic inflammatory mucocutaneous disease usually affecting the female genitalia (VULVAR LICHEN SCLEROSUS) and BALANITIS XEROTICA OBLITERANS in males. It is also called white spot disease and Csillag's disease.
Pseudoxanthoma Elasticum
An inherited disorder of connective tissue with extensive degeneration and calcification of ELASTIC TISSUE primarily in the skin, eye, and vasculature. At least two forms exist, autosomal recessive and autosomal dominant. This disorder is caused by mutations of one of the ATP-BINDING CASSETTE TRANSPORTERS. Patients are predisposed to MYOCARDIAL INFARCTION and GASTROINTESTINAL HEMORRHAGE.
Renal Insufficiency
Conditions in which the KIDNEYS perform below the normal level in the ability to remove wastes, concentrate URINE, and maintain ELECTROLYTE BALANCE; BLOOD PRESSURE; and CALCIUM metabolism. Renal insufficiency can be classified by the degree of kidney damage (as measured by the level of PROTEINURIA) and reduction in GLOMERULAR FILTRATION RATE.
Renal Insufficiency, Chronic
Conditions in which the KIDNEYS perform below the normal level for more than three months. Chronic kidney insufficiency is classified by five stages according to the decline in GLOMERULAR FILTRATION RATE and the degree of kidney damage (as measured by the level of PROTEINURIA). The most severe form is the end-stage renal disease (CHRONIC KIDNEY FAILURE). (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002)
About the L90 Code Range
ICD-10 code L90 covers atrophic disorders of the skin, which are conditions characterized by thinning, scarring, or wasting away of the skin layers. These codes are specifically used to document various types of skin atrophy and scarring disorders, allowing precise clinical classification and billing.
The section includes highly specific codes such as L90.0 for lichen sclerosus et atrophicus, a condition also known by terms like genital or extragenital lichen sclerosus, which causes white patches and thinning of the skin. Codes L90.1 and L90.2 represent different forms of anetoderma (Schweninger-Buzzi and Jadassohn-Pellizzari), disorders that involve localized loss of elastic tissue creating soft, flaccid skin patches. L90.3 identifies atrophoderma of Pasini and Pierini, presenting as idiopathic skin depressions. L90.4 marks acrodermatitis chronica atrophicans, a chronic Borrelia infection-related skin atrophy. Scarring and fibrosis are detailed under L90.5, capturing various post-traumatic or treatment-related scars, including contractures and hypertrophic scars. L90.6 covers striae atrophicae, commonly known as stretch marks and corticosteroid-related skin thinning. Other rare or unspecified atrophic skin disorders are included in L90.8 and L90.9. Together, these codes assist healthcare professionals and coders in accurately documenting diverse atrophic skin conditions for diagnosis, treatment monitoring, and insurance purposes.
Questions About This Page
How many billable codes are in the L90 range?
Of the 10 codes in this range, 9 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the L90 range classify?
The range classifies atrophic disorders of skin. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
