I46.9
BillableCardiac arrest, cause unspecified
Cardiac arrest, cause unspecified
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •transient cerebral ischemic attacks and related syndromesG45
- •cardiogenic shockR57.0
Related Codes(2)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(90)
SNOMED CT
- Sinus arrest5609005
- Cardiac arrest following obstetric procedure16574001
- Obstetrical complication of anaesthesia AND/OR sedation29847008
- Obstetrical complication of anesthesia AND/OR sedation29847008
- Cardiac arrest AND/OR failure following anaesthesia AND/OR sedation in labour AND/OR delivery62657007
- Cardiac arrest AND/OR failure following anesthesia AND/OR sedation in labor AND/OR delivery62657007
- Cardiac disorder following anaesthesia AND/OR sedation in labour AND/OR delivery64171002
- Cardiac disorder following anesthesia AND/OR sedation in labor AND/OR delivery64171002
- Obstetrical cardiac complication of anaesthesia AND/OR sedation64171002
- Obstetrical cardiac complication of anesthesia AND/OR sedation64171002
- Cardiac arrest with successful resuscitation233927002
- Cardiac arrest with electromechanical dissociation234172002
- EMD - electromechanical dissociation234172002
- Electromechanical dissociation234172002
- PEA - pulseless electrical activity234172002
- Pulseless electrical activity234172002
- Circulatory arrest261195002
- Collapse271787007
- Post-cardiorespiratory arrest coma275470000
- Hypoxic-ischaemic coma281509000
- Hypoxic-ischemic coma281509000
- Anoxic brain damage389098007
- Anoxic brain injury389098007
- Anoxic encephalopathy389098007
- Asystole397829000
- Cardiac standstill397829000
- Cardiac arrest410429000
- ECG: asystole427485008
- EKG: asystole427485008
- Electrocardiographic asystole427485008
- Atrial arrest450919004
- Atrial standstill450919004
- Hypoxic ischaemic brain injury703300001
- Hypoxic ischaemic encephalopathy703300001
- Hypoxic ischemic brain injury703300001
- Hypoxic ischemic encephalopathy703300001
- Hypoxic ischaemic encephalopathy due to cardiac arrest703305006
- Hypoxic ischemic encephalopathy due to cardiac arrest703305006
- Collapse due to cardiac arrest840333006
- Cardiac arrest due to procedure1149361009
- Cardiac arrest during procedure1149362002
- Anoxic encephalopathy due to cardiac arrest1259556004
- Cardiac arrhythmia during pregnancy72291000119104
- Cardiac arrhythmia in pregnancy72291000119104
- Idiopathic cardiac arrest5561000124105
Clinical Terms
- EMD - electromechanical dissociation
- Hypoxic ischemic encephalopathy
- Obstetrical cardiac complication of anaesthesia AND/OR sedation
- Atrial arrest
- Cardiac arrest AND/OR failure following anaesthesia AND/OR sedation in labour AND/OR delivery
- Electrocardiographic asystole
- ECG: asystole
- Obstetrical cardiac complication of anesthesia AND/OR sedation
- Cardiac arrest with electromechanical dissociation
- Hypoxic ischaemic encephalopathy
- Cardiac standstill
- Cardiac arrest during procedure
- Obstetrical complication of anaesthesia AND/OR sedation
- Collapse due to cardiac arrest
- Cardiac arrest AND/OR failure following anesthesia AND/OR sedation in labor AND/OR delivery
- Atrial standstill
- Hypoxic ischemic encephalopathy due to cardiac arrest
- Anoxic brain damage
- Asystole
- Cardiac arrhythmia in pregnancy
- Cardiac disorder following anesthesia AND/OR sedation in labor AND/OR delivery
- Hypoxic ischaemic encephalopathy due to cardiac arrest
- Cardiac arrest following obstetric procedure
- Cardiac arrest with successful resuscitation
- Pulseless electrical activity
- PEA - pulseless electrical activity
- Anoxic encephalopathy due to cardiac arrest
- Sinus arrest
- Hypoxic ischemic brain injury
- Idiopathic cardiac arrest
- Anoxic encephalopathy
- Electromechanical dissociation
- Obstetrical complication of anesthesia AND/OR sedation
- Anoxic brain injury
- Hypoxic-ischaemic coma
- Circulatory arrest
- Hypoxic-ischemic coma
- Cardiac arrest due to procedure
- Collapse
- Hypoxic ischaemic brain injury
- Cardiac disorder following anaesthesia AND/OR sedation in labour AND/OR delivery
- Cardiac arrhythmia during pregnancy
- Post-cardiorespiratory arrest coma
- EKG: asystole
Frequently Asked Questions
What is the ICD-10 code for cardiac arrest, cause unspecified?
The ICD-10-CM code for cardiac arrest, cause unspecified is I46.9. The full clinical description is "Cardiac arrest, cause unspecified". I46.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I46.9 mean?
ICD-10-CM code I46.9 represents “Cardiac arrest, cause 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 I46.9 a billable code?
Yes, I46.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I46.9 in?
I46.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I46.9 map to?
I46.9 maps to 24 SNOMED CT concepts: 389098007, 1259556004, 397829000, 450919004, 410429000, and 19 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I46.9?
I46.9 is linked to 1 UMLS Concept Unique Identifier: C2882265. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I46.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like cardiac arrest, cause 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 I46.9?
I46.9 maps to the ICD-11 code: MC82.Z (Cardiac arrest, unspecified).
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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.