2026 ICD-10-CM Diagnosis Code R94.39Abnormal result of other cardiovascular function study
ICD-10-CM Codes›R00–R99›R90-R94›R94
- Billable — Valid for Submission
- Not Chronic
R94.39 is a billable ICD-10-CM diagnosis code for abnormal result of other cardiovascular function study. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 314 through 316. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Abnormal findings without diagnosis.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal capillary filling
- Abnormal cardiac flow
- Abnormal vascular flow
- Atrial dyskinesia
- Atrioventricular nodal function - finding
- Atrioventricular slow nodal pathway
- Ballistocardiogram abnormal
- Capillary refill
- Cardiac akinesia
- Cardiac dyskinesia
- Cardiac function test abnormal
- Cardiac investigative finding
- Cardiovascular stress test abnormal
- Carotid artery Doppler abnormal
- Decreased blood vessel permeability
- Decreased capillary filling time
- Decreased capillary permeability
- Decreased cardiac function
- Decreased cardiac index
- Decreased cardiac stroke volume
- Decreased cardiac stroke volume index
- Decreased collateral circulation
- Decreased vascular flow
- Decreased vascular resistance
- Depression of left ventricular systolic function
- Dilatation of blood vessel
- Doppler studies abnormal
- Early repolarization
- Exercise test finding
- Exercise tolerance test equivocal
- Fixed myocardial perfusion defect
- Fragile blood vessel
- Hard blood vessel
- High ventilation-perfusion ratio
- Hyperkinesis of region of cardiac wall
- Hyperkinetic ventricular wall
- Hypokinesis of cardiac wall
- Immobile heart valve
- Impaired left ventricular function
- Increased blood vessel permeability
- Increased capillary filling time
- Increased cardiac function
- Increased cardiac index
- Increased cardiac output
- Increased cardiac stroke volume
- Increased collateral circulation
- Increased vascular flow
- Increased vascular resistance
- Inducible ischemia manifest on stress test post myocardial infarction
- Inequality of ventilation-perfusion ratio
- Jet type vascular flow
- Left ventricular pressure during mid-diastole below reference range
- Left ventricular wall motion abnormality
- Low ventilation-perfusion ratio
- Myocardial ischemia manifest on stress test status post myocardial infarction
- Myocardial perfusion - finding
- Myocardial perfusion defect
- Negative inotropic effect on myocardium
- No reflow vascular flow
- Nodal function - finding
- Paradoxical right ventricular wall
- Parasympathetic cardiovascular function disorder
- Phonocardiogram abnormal
- Porto-caval shunting vascular flow
- Porto-splenic shunting vascular flow
- Post stenotic dilation
- Prominent blood vessel
- Reversed vascular flow
- Reversible myocardial perfusion defect
- Right ventricular function - finding
- Right ventricular wall motion - finding
- Shunting vascular flow
- Special cardiovascular system test abnormal
- Thallium stress test abnormal
- Transient reduction in peripheral circulation as a whole
- Vectorcardiogram abnormal
- Ventilation-perfusion finding
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Abnormal electrophysiological intracardiac studies
- Abnormal phonocardiogram
- Abnormal vectorcardiogram
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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Abnormal, abnormality, abnormalities - See Also: Anomaly;
- electrophysiological intracardiac studies - R94.39
- phonocardiogram - R94.39
- vectorcardiogram - R94.39
- Findings, abnormal, inconclusive, without diagnosis - See Also: Abnormal;
- stress test - R94.39
- vectorcardiogram (VCG) - R94.39
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Abnormal, abnormality, abnormalities
- electrophysiological intracardiac studies
- Abnormal, abnormality, abnormalities
- phonocardiogram
- Abnormal, abnormality, abnormalities
- vectorcardiogram
- Findings, abnormal, inconclusive, without diagnosis
- stress test
- Findings, abnormal, inconclusive, without diagnosis
- vectorcardiogram (VCG)
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Heart Diseases
Heart disease is a general term that includes many types of heart problems. It's a type of cardiovascular disease, which means heart and blood vessel disease.
The full article covers:
- What is heart disease?
- What are the types of heart disease?
- What causes heart diseases?
- Who is more likely to develop heart diseases?
- What are the symptoms of heart disease?
- How are heart diseases diagnosed?
- What are the treatments for heart disease?
- Can heart diseases be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R94.39 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R94.39Overview
Is R94.39 (Abnormal results of cardiovascular function studies) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report abnormal result of other cardiovascular function study on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does R94.39 group to?
When abnormal result of other cardiovascular function study is the principal diagnosis on an inpatient stay, it groups to MS-DRG 314, 315, 316, with relative weights from 0.6821 to 2.0852 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R94.39 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the abnormal result of other cardiovascular function study is established, that condition takes the principal position instead.
What is the ICD-9 equivalent of R94.39?
Under the General Equivalence Mappings, abnormal result of other cardiovascular function study converts to ICD-9-CM 794.39 (abn cardiovasc study NEC). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
