ICD-10 Diagnosis Code Q25.21

Interruption of aortic arch

Diagnosis Code Q25.21

ICD-10: Q25.21
Short Description: Interruption of aortic arch
Long Description: Interruption of aortic arch
This is the 2018 version of the ICD-10-CM diagnosis code Q25.21

Valid for Submission
The code Q25.21 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Congenital malformations of the circulatory system (Q20-Q28)
      • Congenital malformations of great arteries (Q25)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code Q25.21 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


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.
  • 747.11 - Interrupt of aortic arch

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 Q25.21 is exempt from POA reporting.

  • Abnormality within thorax due to interruption of aortic arch
  • Interrupted aortic arch
  • Interrupted aortic arch
  • Interrupted aortic arch
  • Interrupted aortic arch between left common carotid and brachiocephalic artery
  • Interrupted aortic arch distal to left subclavian artery
  • Interruption of aortic arch between left common carotid artery and right common carotid artery
  • Interruption of aortic arch distal to subclavian artery
  • Postductal coarctation of aorta
  • Postductal interruption of aorta
  • Thoracic aortic coarctation

Index of Diseases and Injuries
References found for the code Q25.21 in the Index of Diseases and Injuries:

Replacement Code Additional informationCallout TooltipReplacement Code
The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2017. This is a new and revised code for the FY 2018 (October 1, 2017-September 30, 2018).

This code replaces the following previously assigned ICD-10 code(s) listed below:
  • Q25.2 - Atresia of aorta

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