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Home/Diagnosis/ICD-10 Coding for Coronary Syndrome

ICD-10 Coding for Coronary Syndrome

I21.01
I24.9

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

Also Known as:
Acute Coronary Syndrome
ACS
Heart Attack
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Key Information: ICD-10 Coding for Coronary Syndrome

Essential facts and insights about ICD-10 Coding for Coronary Syndrome

Use ICD-10 code I21.01 for st elevation (stemi) myocardial infarction involving left anterior descending coronary artery, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery

Billable Code
I21.01
Billable

Diagnostic Criteria

clinical:
  • • Presence of ST elevation in ECG
documentation:
  • • Troponin levels above 99th percentile

Applicable To

  • • STEMI of LAD

Important Notes

  • • Ensure documentation specifies the artery involved and confirms STEMI with ECG and troponin.

Acute coronary syndrome, unspecified

Billable Code
I24.9
Billable

Diagnostic Criteria

clinical:
  • • Chest pain with unknown etiology
documentation:
  • • Pending further diagnostic results

Applicable To

  • • Unspecified ACS

Important Notes

  • • Avoid using I24.9 if specific MI type is determined.
Ancillary Codes

Additional codes that may be used with this diagnosis

I10

Essential (primary) hypertension

Use to document comorbid hypertension.

Frequently Asked Questions

What is the ICD-10 code for coronary syndrome?

The ICD-10 code for unspecified acute coronary syndrome is I24.9, but specific types like STEMI and NSTEMI have their own codes such as I21.01 for STEMI involving the LAD.

How do you code a STEMI in ICD-10?

For a STEMI involving the left anterior descending artery, use ICD-10 code I21.01, ensuring documentation includes ECG and troponin results.

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