2021 ICD-10-CM Code I45.9
Conduction disorder, unspecified
Valid for Submission
I45.9 is a billable diagnosis code used to specify a medical diagnosis of conduction disorder, unspecified. The code I45.9 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code I45.9 might also be used to specify conditions or terms like aberrantly conducted complex, abnormal cardiac conduction, atrial septal defect, atrioventricular conduction defect syndrome, conduction disorder of the heart, congenital conduction defect , congenital conduction defect, etc.
Unspecified diagnosis codes like I45.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
ICD-10: | I45.9 |
Short Description: | Conduction disorder, unspecified |
Long Description: | Conduction disorder, unspecified |
Code Classification
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 I45.9:
Inclusion Terms
Inclusion TermsThese 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.
- Heart block NOS
- Stokes-Adams syndrome
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 I45.9 are found in the index:
- - Arrhythmia (auricle) (cardiac) (juvenile) (nodal) (reflex) (supraventricular) (transitory) (ventricle) - I49.9
- - block - I45.9
- - Attack, attacks
- - Adams-Stokes - I45.9
- - Stokes-Adams - I45.9
- - Block, blocked
- - arrhythmic - I45.9
- - cardiac - I45.9
- - conduction - I45.9
- - heart - I45.9
- - Defect, defective - Q89.9
- - conduction (heart) - I45.9
- - Delay, delayed
- - conduction (cardiac) (ventricular) - I45.9
- - Disease, diseased - See Also: Syndrome;
- - Disorder (of) - See Also: Disease;
- - conduction, heart - I45.9
- - Dropped heart beats - I45.9
- - Morgagni-Stokes-Adams syndrome - I45.9
- - Stokes-Adams disease or syndrome - I45.9
- - Syndrome - See Also: Disease;
- - Adams-Stokes (-Morgagni) - I45.9
- - Morgagni-Adams-Stokes - I45.9
- - Spen's - I45.9
- - Stokes (-Adams) - I45.9
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Aberrantly conducted complex
- Abnormal cardiac conduction
- Atrial septal defect, atrioventricular conduction defect syndrome
- Conduction disorder of the heart
- Congenital conduction defect
- Congenital conduction defect
- EKG: heart block
- Heart block
- Heart block due to drug
- Malfunction from artificial pacing
- Microcephalus, cerebellar hypoplasia, cardiac conduction defect syndrome
- Paroxysmal atrial tachycardia with block
- Paroxysmal supraventricular tachycardia
- Rhythm from artificial pacing
- Stokes-Adams attack
- Stokes-Adams syndrome
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code I45.9 is grouped in the following groups for version MS-DRG V38.0 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 10/01/2020 through 09/30/2021.
Convert I45.9 to ICD-9 Code
- 426.9 - Conduction disorder NOS
Information for Patients
Arrhythmia
Also called: Irregular heartbeat
An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heart beat.
Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Some substances or medicines may also cause arrhythmias.
Symptoms of arrhythmias include
- Fast or slow heart beat
- Skipping beats
- Lightheadedness or dizziness
- Chest pain
- Shortness of breath
- Sweating
Your doctor can run tests to find out if you have an arrhythmia. Treatment to restore a normal heart rhythm may include medicines, an implantable cardioverter-defibrillator (ICD) or pacemaker, or sometimes surgery.
NIH: National Heart, Lung, and Blood Institute
- Arrhythmias (Medical Encyclopedia)
- Atrial fibrillation or flutter (Medical Encyclopedia)
- Cardiac ablation procedures (Medical Encyclopedia)
- Ectopic heartbeat (Medical Encyclopedia)
- Electrocardiogram (Medical Encyclopedia)
- Exercise stress test (Medical Encyclopedia)
- Heart palpitations (Medical Encyclopedia)
- Holter monitor (24h) (Medical Encyclopedia)
- Paroxysmal supraventricular tachycardia (PSVT) (Medical Encyclopedia)
- Ventricular tachycardia (Medical Encyclopedia)
- Wolff-Parkinson-White syndrome (Medical Encyclopedia)
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Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)