I21.0
Non-billableST elevation (STEMI) myocardial infarction of anterior wall
ST elevation (STEMI) myocardial infarction of anterior wall
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Type 1 ST elevation myocardial infarction of anterior wall
Includes
Conditions included under this code
- cardiac infarction
- coronary (artery) embolism
- coronary (artery) occlusion
- coronary (artery) rupture
- coronary (artery) thrombosis
- infarction of heart, myocardium, or ventricle
- myocardial infarction specified as acute or with a stated duration of 4 weeks (28 days) or less from onset
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
- old myocardial infarction (I25.2)
- postmyocardial infarction syndrome (I24.1)
- subsequent type 1 myocardial infarction (I22.-)
Use Additional Code
Additional codes that should follow this code
- code, if applicable, to identify:
- exposure to environmental tobacco smoke (Z77.22)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Code Also
A second code may be required; sequencing depends on circumstances
- the presence of hypertension (I10-I1A)
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-10 code for st elevation (stemi) myocardial infarction of anterior wall?
The ICD-10-CM code for st elevation (stemi) myocardial infarction of anterior wall is I21.0. The full clinical description is "ST elevation (STEMI) myocardial infarction of anterior wall". I21.0 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code I21.0 mean?
ICD-10-CM code I21.0 represents "ST elevation (STEMI) myocardial infarction of anterior wall". It is classified under Chapter 9: Diseases of the Circulatory System and is a non-billable header code. Use a more specific child code for billing purposes.
Is I21.0 a billable code?
No, I21.0 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under I21.0.
What chapter is I21.0 in?
I21.0 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What are the subcategories under I21.0?
I21.0 has 3 child codes, including: I21.01 (STEMI involving left main coronary artery), I21.02 (STEMI involving left anterior descending coronary artery), I21.09 (STEMI involving oth coronary artery of anterior wall).
Are additional codes required with I21.0?
Yes, when using I21.0 you should also code: code, if applicable, to identify:; exposure to environmental tobacco smoke (Z77.22); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82); tobacco dependence (F17.-); tobacco use (Z72.0).
What are the UMLS CUIs for I21.0?
I21.0 is linked to 2 UMLS Concept Unique Identifiers: C2882090, C4509196. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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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.