427.9 CARDIAC DYSRHYTHMIA NOS

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Code Information

Diagnosis Code: 427.9

Short Description: Cardiac dysrhythmia NOS

Long Description: Cardiac dysrhythmia, unspecified

Code Classification:

Diseases of the circulatory system (390–459)
- Other forms of heart disease (420-429)
  - 427 Cardiac dysrhythmias
    - 427.9 Cardiac dysrhythmia NOS

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 427.9 has the following ICD-9-CM references to the Index of Diseases and Injuries

Action, heart
- disorder 427.9
  - postoperative 997.1
- irregular 427.9
  - postoperative 997.1
  - psychogenic 306.2

Arrhythmia (auricle) (cardiac) (cordis) (gallop rhythm) (juvenile) (nodal) (reflex) (sinus) (supraventricular) (transitory) (ventricle) 427.9
- bigeminal rhythm 427.89
- block 426.9
- bradycardia 427.89
- contractions, premature 427.60
- coronary sinus 427.89
- ectopic 427.89
- extrasystolic 427.60
- postoperative 997.1
- psychogenic 306.2
- vagal 780.2

Disease, diseased - see also Syndrome
- heart (organic) 429.9
  - functional 427.9
    - postoperative 997.1
    - psychogenic 306.2

Disorder - see also Disease
- cardiac, functional 427.9
  - postoperative 997.1
  - psychogenic 306.2
- heart action 427.9
  - postoperative 997.1

Disturbance - see also Disease
- rhythm, heart 427.9
  - postoperative (immediate) 997.1
    - long-term effect of cardiac surgery 429.4
  - psychogenic 306.2

Dysfunction
- heart 427.9
  - postoperative (immediate) 997.1
    - long-term effect of cardiac surgery 429.4

Dysrhythmia
- cardiac 427.9
  - postoperative (immediate) 997.1
    - long-term effect of cardiac surgery 429.4
  - specified type NEC 427.89

Irregular, irregularity
- action, heart 427.9

Rhythm
- disorder 427.9
  - coronary sinus 427.89
  - ectopic 427.89
  - nodal 427.89
- heart, abnormal 427.9
  - fetus or newborn - see Abnormal, heart rate

Crosswalk Information

The code 427.9 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
427.9		I49.9	Cardiac arrhythmia, 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
427.0	Paroxysmal supraventricular tachycardia
427.1	Paroxysmal ventricular tachycardia
427.2	Paroxysmal tachycardia, unspecified
427.31	Atrial fibrillation
427.32	Atrial flutter
427.41	Ventricular fibrillation
427.42	Ventricular flutter
427.5	Cardiac arrest
427.60	Premature beats, unspecified
427.61	Supraventricular premature beats
427.69	Other premature beats
427.81	Sinoatrial node dysfunction
427.89	Other specified cardiac dysrhythmias

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

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