ICD-10-CM Code Q28.1

Other malformations of precerebral vessels

Version 2020 Billable Code POA Exempt

Valid for Submission

Q28.1 is a billable code used to specify a medical diagnosis of other malformations of precerebral vessels. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Q28.1 might also be used to specify conditions or terms like congenital anomaly of carotid artery or congenital malposition of carotid artery or isolation of common carotid artery or isolation of left common carotid artery or retroesophageal carotid artery. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

ICD-10:Q28.1
Short Description:Other malformations of precerebral vessels
Long Description:Other malformations of precerebral vessels

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Q28.1:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Congenital malformation of precerebral vessels NOS
  • Congenital precerebral aneurysm (nonruptured)

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Q28.1 are found in the index:


Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Congenital anomaly of carotid artery
  • Congenital malposition of carotid artery
  • Isolation of common carotid artery
  • Isolation of left common carotid artery
  • Retroesophageal carotid artery

Diagnostic Related Groups

The ICD-10 code Q28.1 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.

  • 299 - PERIPHERAL VASCULAR DISORDERS WITH MCC
  • 300 - PERIPHERAL VASCULAR DISORDERS WITH CC
  • 301 - PERIPHERAL VASCULAR DISORDERS WITHOUT CC/MCC

Present on Admission (POA)

Q28.1 is exempt from POA reporting - 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. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Q28.1 to ICD-9

  • 747.89 - Circulatory anomaly NEC (Approximate Flag)

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Congenital malformations of the circulatory system (Q20-Q28)
      • Other congenital malformations of circulatory system (Q28)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Arteriovenous Malformations

Arteriovenous malformations (AVMs) are defects in your vascular system. The vascular system includes arteries, veins, and capillaries. Arteries carry blood away from the heart to other organs; veins carry blood back to the heart. Capillaries connect the arteries and veins. An AVM is a snarled tangle of arteries and veins. They are connected to each other, with no capillaries. That interferes with the blood circulation in an organ.

AVMs can happen anywhere, but they are more common in the brain or spinal cord. Most people with brain or spinal cord AVMs have few, if any, major symptoms. Sometimes they can cause seizures or headaches.

AVMs are rare. The cause is not known, but they seem to develop during pregnancy or soon after birth. Doctors use imaging tests to detect them.

Medicines can help with the symptoms from AVMs. The greatest danger is hemorrhage. Treatment for AVMs can include surgery or focused radiation therapy. Because surgery can be risky, you and your doctor need to make a decision carefully.

NIH: National Institute of Neurological Disorders and Stroke


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