Q82.4 Ectodermal dysplasia (anhidrotic)

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Excludes1 (never code together)

• Ellis-van Creveld syndrome (Q77.6)

Applies from Q82 Other congenital malformations of skin

Excludes1 (never code together)

• acrodermatitis enteropathica (E83.2)
• congenital erythropoietic porphyria (E80.0)
• pilonidal cyst or sinus (L05.-)
• Sturge-Weber (-Dimitri) syndrome (Q85.89)

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 757.31 Congenital ectodermal dysplasia

Code annotations containing back-references to Q82.4

Back-references to Q82

• Type 1 Excludes: P83 Other conditions of integument specific to newborn ("congenital malformations of skin and integument (Q80-Q84)")

Diagnosis Index entries for Q82.4

• Basan's (hidrotic) ectodermal dysplasia
• Bason's (hidrotic) ectodermal dysplasia
• Clouston's (hidrotic) ectodermal dysplasia
• Dysplasia › ectodermal (anhidrotic) (congenital) (hereditary)
• Ectodermal dysplasia (anhidrotic)
• Feinmesser's (hidrotic) ectodermal dysplasia
• Marshall's (hidrotic) ectodermal dysplasia
• Robinson's (hidrotic) ectodermal dysplasia or syndrome
• Syndrome › Clouston's (hidrotic ectodermal dysplasia)
• Syndrome › Siemens' ectodermal dysplasia

Nearby codes

• Q82 Other congenital malformations of skin
• Q82.0 Hereditary lymphedema
• Q82.1 Xeroderma pigmentosum
• Q82.2 Congenital cutaneous mastocytosis
• Q82.3 Incontinentia pigmenti
• Q82.4 Ectodermal dysplasia (anhidrotic) (this code)
• Q82.5 Congenital non-neoplastic nevus
• Q82.6 Congenital sacral dimple
• Q82.8 Other specified congenital malformations of skin
• Q82.9 Congenital malformation of skin, unspecified