Is Q33 a billable ICD-10-CM code?

No. Q33 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Q33 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the respiratory system (Q30-Q34).

Q33

Q33 — Congenital malformations of lung

Non-billable headerICD-10-CM

Q33 is a non-billable header ICD-10-CM code for congenital malformations of lung. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with Q33

These codes carry an Excludes1 note pointing at Q33. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q33 alone.

Q32Congenital malformations of trachea and bronchus
J47Bronchiectasis

Risk adjustment

Q33 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 Q33

9 child codes. Green means billable.

Questions about Q33

Is Q33 a billable ICD-10-CM code?: No. Q33 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Q33 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the respiratory system (Q30-Q34).