Is Q77.3 a billable ICD-10-CM code?

Yes. Q77.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Q77.3 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations and deformations of the musculoskeletal system (Q65-Q79).

What cannot be coded together with Q77.3?

Q77.3 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

Q77.3

Q77.3 — Chondrodysplasia punctata

Billable / specific codeICD-10-CMPOA exempt

Q77.3 is a billable, specific ICD-10-CM code for chondrodysplasia punctata. 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.

Rhizomelic chondrodysplasia punctata (E71.540)

Risk adjustment

Q77.3 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.

Medicare coverage

Q77.3 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56907Billing and Coding: Bisphosphonate Drug Therapy
A57204Billing and Coding: MRI and CT Scans of the Head and Neck
A59561Billing and Coding: Bisphosphonate Drug Therapy

How Q77.3 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 Q77.3.

Conradi disease(-Hunermann)
Chondrodysplasia›calcificans congenita
Chondrodysplasia›punctata
Chondrodystrophy, chondrodystrophia›calcificans congenita
Chondrodystrophy, chondrodystrophia›punctata

Related codes at this level

Codes that share Q77. If Q77.3 is not quite right, the correct code is usually one of these.

Questions about Q77.3

Is Q77.3 a billable ICD-10-CM code?: Yes. Q77.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q77.3 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations and deformations of the musculoskeletal system (Q65-Q79).
What cannot be coded together with Q77.3?: Q77.3 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.