2024 ICD-10-CM Diagnosis Code I20.81

Angina pectoris with coronary microvascular dysfunction

• I20.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• ICD-10-CM I20.81 is a new 2024 ICD-10-CM code that became effective on October 1, 2023.
• This is the American ICD-10-CM version of I20.81 – other international versions of ICD-10 I20.81 may differ.

Applicable To

• Angina pectoris with coronary microvascular disease

The following code(s) above I20.81 contain annotation back-references

 that may be applicable to I20.81:

• I00-I99  Diseases of the circulatory system
• I20-I25  Ischemic heart diseases
• I20  Angina pectoris
• I20.8  Other forms of angina pectoris

ICD-10-CM I20.81 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

• 311 Angina pectoris

Code History

• 2024 (effective 10/1/2023): New code

Diagnosis Index entries containing back-references to I20.81:

• Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) I20.9
  • with
    • coronary microvascular disease I20.81
    • coronary microvascular dysfunction I20.81
• Disease, diseased – see also Syndrome
  • coronary (artery) – see Disease, heart, ischemic, atherosclerotic
    • microvascular
      • with
        • angina pectoris I20.81
• Dysfunction
  • coronary microvascularI25.85
    • with
      • angina pectoris I20.81