ICD-10 Diagnosis Code Q40.1

Congenital hiatus hernia

Diagnosis Code Q40.1

ICD-10: Q40.1
Short Description: Congenital hiatus hernia
Long Description: Congenital hiatus hernia
This is the 2017 version of the ICD-10-CM diagnosis code Q40.1

Code Classification
  • Congenital malformations, deformations and chromosomal abnormalities
    • Other congenital malformations of the digestive system (Q38-Q45)
      • Other congenital malformations of upper alimentary tract (Q40)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code Q40.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 750.6 - Congenital hiatus hernia

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Q40.1 is exempt from POA reporting.

  • Congenital hiatus hernia
  • Hiatal hernia

Index of Diseases and Injuries
References found for the code Q40.1 in the Index of Diseases and Injuries:

Information for Patients

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

A birth defect may affect how the body looks, works or both. Some birth defects like cleft lip or neural tube defects are structural problems that can be easy to see. To find others, like heart defects, doctors use special tests. Birth defects can vary from mild to severe. Some result from exposures to medicines or chemicals. For example, alcohol abuse can cause fetal alcohol syndrome. Infections during pregnancy can also result in birth defects. For most birth defects, the cause is unknown.

Some birth defects can be prevented. Taking folic acid can help prevent some birth defects. Talk to your doctor about any medicines you take. Some medicines can cause serious birth defects.

Babies with birth defects may need surgery or other medical treatments. Today, doctors can diagnose many birth defects in the womb. This enables them to treat or even correct some problems before the baby is born.

Centers for Disease Control and Prevention

  • Intersex

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Hiatal Hernia

A hiatal hernia is a condition in which the upper part of the stomach bulges through an opening in the diaphragm. The diaphragm is the muscle wall that separates the stomach from the chest. The diaphragm helps keep acid from coming up into the esophagus. When you have a hiatal hernia, it's easier for the acid to come up. The leaking of acid from the stomach into the esophagus is called gastroesophageal reflux disease (GERD). GERD may cause symptoms such as

  • Heartburn
  • Problems swallowing
  • A dry cough
  • Bad breath

Hiatal hernias are common, especially in people over age 50. If you have symptoms, eating small meals, avoiding certain foods, not smoking or drinking alcohol, and losing weight may help. Your doctor may recommend antacids or other medicines. If these don't help, you may need surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Anti-reflux surgery
  • Anti-reflux surgery - children
  • Hiatal hernia

[Read More]
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