Q82.4
Q82.4 — Ectodermal dysplasia (anhidrotic)
Billable / specific codeICD-10-CMPOA exempt
Q82.4 is a billable, specific ICD-10-CM code for ectodermal dysplasia (anhidrotic). It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- Ellis-van Creveld syndrome (Q77.6)
Risk adjustment
Q82.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How Q82.4 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Q82.4.
- Basan's ectodermal dysplasia(hidrotic)
- Bason's ectodermal dysplasia(hidrotic)
- Clouston's ectodermal dysplasia(hidrotic)
- Ectodermal dysplasia(anhidrotic)
- Feinmesser's ectodermal dysplasia(hidrotic)
- Marshall's ectodermal dysplasia(hidrotic)
- Robinson's ectodermal dysplasia or syndrome(hidrotic)
- Dysplasia›ectodermal(anhidrotic) (congenital) (hereditary)
- Syndrome›Clouston's(hidrotic ectodermal dysplasia)
- Syndrome›Siemens' ectodermal dysplasia
Related codes at this level
Codes that share Q82. If Q82.4 is not quite right, the correct code is usually one of these.
Questions about Q82.4
- Is Q82.4 a billable ICD-10-CM code?
- Yes. Q82.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Q82.4 sit in the tabular list?
- Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations (Q80-Q89).
- What cannot be coded together with Q82.4?
- Q82.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.