Q79.1

Q79.1: Other congenital malformations of diaphragm

Billable / specific codeICD-10-CMPOA exempt

Q79.1 is a billable, specific ICD-10-CM code for other congenital malformations of diaphragm. It is valid for submission on a claim.

Check Q79.1 with the rest of the claim: free scrubber

Inclusion terms

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

Absence of diaphragm
Congenital malformation of diaphragm NOS
Eventration of diaphragm

Excludes2 inherited from the categories above Q79.1

Not part of this code, but both may be coded when both are present.

Written on Q79: Congenital malformations of musculoskeletal system, not elsewhere classified

congenital (sternomastoid) torticollis (Q68.0)

Other codes that can never be billed with Q79.1

Their own Excludes1 notes name this code, so the conflict is not listed above.

J98.6Disorders of diaphragm

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Q79.1 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax

Alphabetic index entries that lead here

Abnormal, abnormality, abnormalities›apertures, congenital, diaphragm
Absence›diaphragm, congenital(with hernia)
Agenesis›diaphragm(with hernia)
Anomaly, anomalous›diaphragm NEC(apertures)
Deformity›diaphragm(congenital)
Elevated, elevation›diaphragm, congenital
Enlargement, enlarged›apertures of diaphragm(congenital)
Eventration›diaphragm(congenital)
High›diaphragm(congenital)
Hypertrophy, hypertrophic›esophageal hiatus(congenital)
Hypertrophy, hypertrophic›hiatus(esophageal)
Malformation›diaphragm

Code history

Unchanged in every release from FY2024 to FY2027.