I24.9
BillableAcute ischemic heart disease, unspecified
Acute ischemic heart disease, unspecified
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
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
- non-ischemic myocardial injury (I5A)
Code Also
A second code may be required; sequencing depends on circumstances
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(34)
SNOMED CT
- Erythrocytosis due to tissue hypoxaemia19588001
- Erythrocytosis due to tissue hypoxemia19588001
- Erythrocytosis due to cardiovascular disease28319009
- Polycythaemia due to cyanotic heart disease191372008
- Polycythemia due to cyanotic heart disease191372008
- Transient myocardial ischaemia315026000
- Transient myocardial ischemia315026000
- ACS - Acute coronary syndrome394659003
- Acute coronary syndrome394659003
- Acute ischaemic heart disease413439005
- Acute ischemic heart disease413439005
- Acute myocardial ischaemia413444003
- Acute myocardial ischemia413444003
- Subacute ischaemic heart disease713405002
- Subacute ischemic heart disease713405002
UMLS
Clinical Terms
- Polycythemia due to cyanotic heart disease
- Acute ischaemic heart disease
- Acute myocardial ischemia
- Transient myocardial ischaemia
- Acute myocardial ischaemia
- Subacute ischaemic heart disease
- Erythrocytosis due to tissue hypoxaemia
- Acute coronary syndrome
- Erythrocytosis due to cardiovascular disease
- Erythrocytosis due to tissue hypoxemia
- Acute ischemic heart disease (disorder)
- Transient myocardial ischemia
- Polycythaemia due to cyanotic heart disease
- ACS - Acute coronary syndrome
- Subacute ischemic heart disease
Frequently Asked Questions
What is the ICD-10 code for acute ischemic heart disease, unspecified?
The ICD-10-CM code for acute ischemic heart disease, unspecified is I24.9. The full clinical description is "Acute ischemic heart disease, unspecified". I24.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I24.9 mean?
ICD-10-CM code I24.9 represents “Acute ischemic heart disease, 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 I24.9 a billable code?
Yes, I24.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I24.9 in?
I24.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I24.9?
I24.9 has Excludes1 notes indicating codes that cannot be used together with it, including: angina pectoris (I20.-); transient myocardial ischemia in newborn (P29.4); ischemic heart disease (chronic) NOS (I25.9).
What SNOMED CT codes does I24.9 map to?
I24.9 maps to 8 SNOMED CT concepts: 394659003, 413439005, 413444003, 28319009, 19588001, and 3 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I24.9?
I24.9 is linked to 1 UMLS Concept Unique Identifier: C1510446. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I24.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like acute ischemic heart disease, 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 I24.9?
I24.9 maps to the ICD-11 code: BA4Z (Acute ischaemic heart disease, 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.