Is Q24.9 a billable ICD-10-CM code?

Yes. Q24.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Q24.9 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the circulatory system (Q20-Q28).

What cannot be coded together with Q24.9?

Q24.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Q24.9 (Q24) and apply to it just the same.

Q24.9

Q24.9 — Congenital malformation of heart, unspecified

Billable / specific codeICD-10-CMPOA exempt

Q24.9 is a billable, specific ICD-10-CM code for congenital malformation of heart, unspecified. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Congenital anomaly of heart
Congenital disease of heart

Excludes1 inherited from the categories above Q24.9

These are not written on Q24.9, but they bind it: a note on a category applies to every code beneath it. Billing Q24.9 with anything listed here is a denial.

Written on Q24 — Other congenital malformations of heart

endocardial fibroelastosis (I42.4)

Risk adjustment

Q24.9 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

Q24.9 is named in 14 Medicare coverage policies — 14 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
A56476Billing and Coding: Cardiac Radionuclide Imaging

How Q24.9 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 Q24.9.

Acyanotic heart disease(congenital)
Atelocardia
Anomaly, anomalous›cardiac
Anomaly, anomalous›heart
Blue›baby
Cyanotic heart disease›congenital
Deformity›heart(congenital)
Malformation›heart
Development›imperfect, congenital›heart
Disease, diseased›heart›congenital
Lesion›cardiac›congenital
Disease, diseased›heart›congenital›cyanotic

Code history

Q24.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share Q24. If Q24.9 is not quite right, the correct code is usually one of these.

Questions about Q24.9

Is Q24.9 a billable ICD-10-CM code?: Yes. Q24.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q24.9 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the circulatory system (Q20-Q28).
What cannot be coded together with Q24.9?: Q24.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Q24.9 (Q24) and apply to it just the same.