ICD-10-CM 2027
ICD-10 code for Marshall's ectodermal dysplasia
From the official ICD-10-CM alphabetic index entry “Marshall's (hidrotic) ectodermal dysplasia”. Page updated September 29, 2026.
About coding Marshall's ectodermal dysplasia
The ICD-10-CM code for Marshall's ectodermal dysplasia is Q82.4 (Ectodermal dysplasia (anhidrotic)).
Within Q82 (other congenital malformations of skin), Q82.4 is specifically for ectodermal dysplasia (anhidrotic). Related codes cover hereditary lymphedema (Q82.0), Xeroderma pigmentosum (Q82.1), congenital cutaneous mastocytosis (Q82.2), Incontinentia pigmenti (Q82.3), congenital non-neoplastic nevus (Q82.5), congenital sacral dimple (Q82.6), other specified congenital malformations of skin (Q82.8) and congenital malformation of skin, unspecified (Q82.9).
Don't report Q82.4 together with the conditions in its Excludes1 note: Ellis-van Creveld syndrome (Q77.6).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for Q82.4)
- Ellis-van Creveld syndrome (Q77.6)
Common questions about Marshall's ectodermal dysplasia ICD-10 codes
What is the ICD-10 code for Marshall's ectodermal dysplasia?
- Q82.4 — Ectodermal dysplasia (anhidrotic).
Is Q82.4 billable?
- Yes. Q82.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q82.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q82.4 as a principal diagnosis.
Is Q82.4 a CC or MCC?
- No. Q82.4 is neither a CC nor an MCC under MS-DRG v44.0.