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Home/Diagnosis/ICD-10 Coding for Cardiac Ischemia

ICD-10 Coding for Cardiac Ischemia

I21.0
I21.A1

Complete ICD-10-CM coding and documentation guide for icd-10 coding for cardiac ischemia includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Heart Ischemia
Myocardial Ischemia
Coronary Artery Disease
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Key Information: ICD-10 Coding for Cardiac Ischemia

Essential facts and insights about ICD-10 Coding for Cardiac Ischemia

Use ICD-10 code I21.0 for st elevation (stemi) myocardial infarction of anterior wall, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

ST elevation (STEMI) myocardial infarction of anterior wall

Non-Billable
I21.0
Non-Billable

Diagnostic Criteria

clinical:
  • • Presence of ST elevation in ECG
documentation:
  • • Explicit mention of anterior wall involvement

Applicable To

  • • Acute myocardial infarction of anterior wall

Important Notes

  • • Ensure ECG and troponin levels are documented to support STEMI diagnosis.

Myocardial infarction type 2

Billable Code
I21.A1
Billable

Diagnostic Criteria

clinical:
  • • Troponin elevation with a documented trigger such as anemia or sepsis

Applicable To

  • • Type 2 myocardial infarction

Important Notes

  • • Ensure the underlying cause is documented and coded first.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z95.5

Presence of coronary angioplasty implant and graft

Use to indicate the presence of a coronary stent.

Frequently Asked Questions

What is the ICD-10 code for cardiac ischemia?

The ICD-10 code for cardiac ischemia includes I21.0-I21.4 for myocardial infarction and I24.8 for other acute ischemic heart diseases.

How do you code a Type 2 myocardial infarction?

For a Type 2 myocardial infarction, use I21.A1 and code the underlying cause first, such as anemia or sepsis.

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