426.9 CONDUCTION DISORDER NOS

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Code Information

Diagnosis Code: 426.9

Short Description: Conduction disorder NOS

Long Description: Conduction disorder, unspecified

Code Classification:

Diseases of the circulatory system (390–459)
- Other forms of heart disease (420-429)
  - 426 Conduction disorders
    - 426.9 Conduction disorder NOS

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 426.9 has the following ICD-9-CM references to the Index of Diseases and Injuries

Adams-Stokes (-Morgagni) disease or syndrome (syncope with heart block) 426.9

Arrhythmia (auricle) (cardiac) (cordis) (gallop rhythm) (juvenile) (nodal) (reflex) (sinus) (supraventricular) (transitory) (ventricle) 427.9
- block 426.9

Block
- arrhythmic 426.9
- cardiac 426.9
- conduction 426.9
  - complete 426.0
- heart 426.9
  - first degree (atrioventricular) 426.11
  - second degree (atrioventricular) 426.13
  - third degree (atrioventricular) 426.0
  - bundle branch (complete) (false) (incomplete) 426.50
    - bilateral 426.53
    - left (see also Block, bundle branch, left) 426.3
    - right (see also Block, bundle branch, right) 426.4
  - complete (atrioventricular) 426.0
  - congenital 746.86
  - incomplete 426.13
  - intra-atrial 426.6
  - intraventricular NEC 426.6
  - sinoatrial 426.6
  - specified type NEC 426.6
- myocardial (see also Block, heart) 426.9

Defect, defective 759.9
- conduction (heart) 426.9
  - bone (see also Deafness, conductive) 389.00

Delay, delayed
- conduction (cardiac) (ventricular) 426.9

Disease, diseased - see also Syndrome
- Adams-Stokes (-Morgagni) (syncope with heart block) 426.9
- Morgagni-Adams-Stokes (syncope with heart block) 426.9
- Stokes-Adams (syncope with heart block) 426.9

Disorder - see also Disease
- conduction, heart 426.9
  - specified NEC 426.89

Morgagni-Adams-Stokes syndrome (syncope with heart block) 426.9

Spens' syndrome (syncope with heart block) 426.9

Stokes-Adams syndrome (syncope with heart block) 426.9

Syndrome - see also Disease
- Adams-Stokes (-Morgagni) (syncope with heart block) 426.9
- Morgagni-Adams-Stokes (syncope with heart block) 426.9
- Spens' (syncope with heart block) 426.9
- Stokes (-Adams) (syncope with heart block) 426.9

Crosswalk Information

The code 426.9 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
426.9		I45.9	Conduction disorder, unspecified

This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code	ICD-9 Description
426.0	Atrioventricular block, complete
426.10	Atrioventricular block, unspecified
426.11	First degree atrioventricular block
426.12	Mobitz (type) II atrioventricular block
426.13	Other second degree atrioventricular block
426.2	Left bundle branch hemiblock
426.3	Other left bundle branch block
426.4	Right bundle branch block
426.50	Bundle branch block, unspecified
426.51	Right bundle branch block and left posterior fascicular block
426.52	Right bundle branch block and left anterior fascicular block
426.53	Other bilateral bundle branch block
426.54	Trifascicular block
426.6	Other heart block
426.7	Anomalous atrioventricular excitation
426.81	Lown-Ganong-Levine syndrome
426.82	Long QT syndrome
426.89	Other specified conduction disorders

This page was last updated on: 10/1/2014

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