Is Q79 a billable ICD-10-CM code?

No. Q79 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Q79 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).

Q79

Q79 — Congenital malformations of musculoskeletal system, not elsewhere classified

Non-billable headerICD-10-CM

Q79 is a non-billable header ICD-10-CM code for congenital malformations of musculoskeletal system, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

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 (sternomastoid) torticollis (Q68.0)

Other codes that can never be billed with Q79

These codes carry an Excludes1 note pointing at Q79. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q79 alone.

M24.3Pathological dislocation of joint, not elsewhere classified
Q40.1Congenital hiatus hernia
Q64.7Other and unspecified congenital malformations of bladder and urethra
Q82.8Other specified congenital malformations of skin
J98.6Disorders of diaphragm
K42Umbilical hernia
K44Diaphragmatic hernia

Risk adjustment

Q79 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 Q79

9 child codes. Green means billable.

Questions about Q79

Is Q79 a billable ICD-10-CM code?: No. Q79 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Q79 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).