Is Q77 a billable ICD-10-CM code?

No. Q77 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Q77 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?

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

Q77

Q77 — Osteochondrodysplasia with defects of growth of tubular bones and spine

Non-billable headerICD-10-CM

Q77 is a non-billable header ICD-10-CM code for osteochondrodysplasia with defects of growth of tubular bones and spine. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

mucopolysaccharidosis (E76.0-E76.3)

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

congenital myotonic chondrodystrophy (G71.13)

Other codes that can never be billed with Q77

These codes carry an Excludes1 note pointing at Q77. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q77 alone.

M85.8Other specified disorders of bone density and structure
Q76.6Other congenital malformations of ribs
Q82.4Ectodermal dysplasia (anhidrotic)
Q87.1Congenital malformation syndromes predominantly associated with short stature
E34.3Short stature due to endocrine disorder

Risk adjustment

Q77 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.

Code to one of these instead Q77

10 child codes. Green means billable.

Questions about Q77

Is Q77 a billable ICD-10-CM code?: No. Q77 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Q77 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?: Q77 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.