Atypical Timothy syndrome
Cardiac channelopathy
Heart regularly irregular
Cardiac arrhythmias
Cardiac arrhythmia associated with genetic disorder
Cardiac arrhythmia in pregnancy
arrhythmias
Heart irregularly irregular
Arrhythmia, Cardiac
Abnormal heart rhythms
Dysrhythmia, Cardiac
Arrhythmias, Cardiac
Cardiac arrhythmia in mother complicating childbirth
cardiac dysrhythmia
Heart rhythm disorders
Atypical long QT syndrome type 8
dysrhythmia
Cardiac dysrhythmia, unspecified
Cardiac dysrhythmias
Sudden cardiac death
Abnormal heart beat
Cardiac arrhythmia (NOS)
Cardiac arrhythmia NOS
Arrythmia
Sudden arrhythmic death syndrome
Transport and golgi organization 2 homolog-related metabolic encephalopathy, arrhythmia syndrome
Arrhythmia cardiac (NOS)
Arrhythmia due to vegetation of infectious endocarditis
Cardiac arrhythmia (disorder)
Postoperative cardiac arrhythmia
heart arrhythmia
Cardiac rhythm disturbances
Supraventricular arrhythmia
Heart disease in childbirth
Cardiac arrhythmia in childbirth
TANGO2-related metabolic encephalopathy, arrhythmia syndrome
Irregular heart beat
Arrhythmia NOS
Timothy syndrome
Electrocardiographic ventricular arrhythmia
Arrhythmia following acute myocardial infarction
Disorder of heart rhythm
Sudden cardiac death due to cardiac arrhythmia
Arrhythmia due to and following acute myocardial infarction
Ventricular arrhythmia
Observation of regularity of heart rhythm
Heart disease in mother complicating childbirth
arrhythmia
heart arrhythmias
Arrhythmia (cardiac) NOS
EKG: ventricular arrhythmia
Dysrhythmias
Cardiac arrhythmia due to coronary artery spasm
Withdrawal arrhythmia
Recurrent metabolic encephalomyopathic crises, rhabdomyolysis, cardiac arrhythmia, intellectual disability syndrome
Irregular heartbeat
Transport and golgi organisation 2 homolog-related metabolic encephalopathy, arrhythmia syndrome
Fibrillation
Cardiac arrhythmia following operative procedure
GNB5-related intellectual disability, cardiac arrhythmia syndrome
Timothy syndrome atypical type
G protein subunit beta 5-related intellectual disability, cardiac arrhythmia syndrome
Ion cardiac channelopathy
Arrhythmia as current complication following acute myocardial infarction
Heart disease in mother complicating pregnancy, childbirth AND/OR puerperium
Cardiac fibrillation
Arrhythmia due to vegetation of infective endocarditis
ECG: ventricular arrhythmia
Arrhythmia (NOS)
Long QT syndrome type 8
Cardiac arrhythmia during pregnancy
Finding of regularity of heart rhythm

Frequently Asked Questions

What is the ICD-10 code for cardiac arrhythmia, unspecified?

The ICD-10-CM code for cardiac arrhythmia, unspecified is I49.9. The full clinical description is "Cardiac arrhythmia, unspecified". I49.9 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code I49.9 mean?

ICD-10-CM code I49.9 represents “Cardiac arrhythmia, unspecified”. It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.

Is I49.9 a billable code?

Yes, I49.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is I49.9 in?

I49.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).

What SNOMED CT codes does I49.9 map to?

I49.9 maps to 27 SNOMED CT concepts: 361136003, 698247007, 723860000, 472810005, 1230097004, and 22 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for I49.9?

I49.9 is linked to 1 UMLS Concept Unique Identifier: C0003811. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does I49.9 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like cardiac arrhythmia, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of I49.9?

I49.9 maps to the ICD-11 code: BE2Y (Other specified diseases of the circulatory system).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.