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I25.85

Chronic coronary microvascular dysfunction

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
I25code
Excludes2
  • non-ischemic myocardial injury (I5A)I5A
I00-I99chapter
Excludes2
  • certain conditions originating in the perinatal period (P04-P96)P04-P96
  • certain infectious and parasitic diseases (A00-B99)A00-B99
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
  • endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
  • injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
  • neoplasms (C00-D49)C00-D49
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
  • systemic connective tissue disorders (M30-M36)M30-M36
  • transient cerebral ischemic attacks and related syndromes (G45.-)G45.-

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 10
I25code
Use additional code
  • code to identify:
  • chronic total occlusion of coronary artery (I25.82)I25.82
  • exposure to environmental tobacco smoke (Z77.22)Z77.22
  • history of tobacco dependence (Z87.891)Z87.891
  • occupational exposure to environmental tobacco smoke (Z57.31)Z57.31
  • tobacco dependence (F17.-)F17.-
  • tobacco use (Z72.0)Z72.0
I25.85code
Inclusion terms
  • Chronic (presentation of) coronary microvascular disease
  • Coronary microvascular dysfunction NOS
I20-I25block
Code also
  • the presence of hypertension (I10-I1A)I10-I1A
Index entries leading here 2
  • Disease, diseased — see also Syndrome
    • coronary (artery) — see Disease, heart, ischemic, atherosclerotic
      • microvascular
  • Dysfunction
Alongside this code 5 same parent — I25.8
I25.81 Atherosclerosis of oth coronary vessels w/o angina pectoris category I25.82 Chronic total occlusion of coronary artery I25.83 Coronary atherosclerosis due to lipid rich plaque I25.84 Coronary atherosclerosis due to calcified coronary lesion I25.89 Other forms of chronic ischemic heart disease
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

RX08HCC188

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
I25.8
Block
I20-I25
Siblings
5

Present FY2024–FY2027.