Q40.1 – Congenital hiatus hernia
ICD-10-CM 2027 diagnosis code · Other congenital malformations of the digestive system
ICD-10-CM code
Q40.1
- Code
Q40.1(claims format:Q401)- Description
- Congenital hiatus hernia
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q38-Q45 Other congenital malformations of the digestive system
- Parent codes
- Q40
Notes for Q40.1
Applicable to:
- Congenital displacement of cardia through esophageal hiatus
Excludes1 (not coded here):
- congenital diaphragmatic hernia (Q79.0)
Index terms for Q40.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Q40
- Q40.0 – Congenital hypertrophic pyloric stenosisBillable
- Q40.2 – Other specified congenital malformations of stomachBillable
- Q40.3 – Congenital malformation of stomach, unspecifiedBillable
- Q40.8 – Other specified congenital malformations of upper alimentary tractBillable
- Q40.9 – Congenital malformation of upper alimentary tract, unspecifiedBillable
Frequently asked questions
What is ICD-10 code Q40.1?
Q40.1 is the ICD-10-CM code for congenital hiatus hernia, in the block Q38-Q45 (Other congenital malformations of the digestive system).
Is Q40.1 a billable code?
Yes. Q40.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q40.1 belong to?
It belongs to category Q40 – Other congenital malformations of upper alimentary tract.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.