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Home/Diagnosis/ICD-10 Coding for Myocardial Ischemia

ICD-10 Coding for Myocardial Ischemia

I21.0
I21.A1

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

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

Essential facts and insights about ICD-10 Coding for Myocardial 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

  • • Presence of ST elevation and elevated troponin

Applicable To

  • • Acute myocardial infarction with ST elevation

Important Notes

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

Myocardial infarction type 2

Billable Code
I21.A1
Billable

Diagnostic Criteria

  • • Troponin elevation
  • • No coronary occlusion
  • • Documented trigger (e.g., anemia, tachycardia)

Applicable To

  • • Type 2 myocardial infarction due to demand ischemia

Important Notes

  • • Always document the underlying cause and sequence it before I21.A1.
Ancillary Codes

Additional codes that may be used with this diagnosis

I50.-

Heart failure

Use when heart failure complicates the myocardial infarction.

D50.9

Iron deficiency anemia

Use when anemia is the underlying cause of the Type 2 MI.

Frequently Asked Questions

What is the ICD-10 code for myocardial ischemia?

The ICD-10 code for myocardial ischemia primarily falls under I20-I25, with specific codes like I21.0 for STEMI and I21.A1 for Type 2 MI.

How do you code a Type 2 myocardial infarction?

Code Type 2 myocardial infarction using I21.A1, ensuring to document and sequence the underlying cause first.

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