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I51.81

Takotsubo syndrome

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
I51code
Excludes2
  • heart disease specified as rheumatic (I00-I09)I00-I09
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 4
I51.81code
Inclusion terms
  • Reversible left ventricular dysfunction following sudden emotional stress
  • Stress induced cardiomyopathy
  • Takotsubo cardiomyopathy
  • Transient left ventricular apical ballooning syndrome
Index entries leading here 3
  • Syndrome — see also Disease
    • apical ballooning (transient left ventricular) I51.81
    • takotsubo I51.81
    • transient left ventricular apical ballooning I51.81
  • Cardiomyopathy (familial) (idiopathic) I42.9
  • Dysfunction
    • ventricular I51.9
      • left, reversible, following sudden emotional stress I51.81
    • left ventricular, following sudden emotional stress I51.81
Alongside this code 1 same parent — I51.8
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

Maps to no condition category in any loaded model.

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

This code

Billable
yes
Code set
FY2026
Parent
I51.8
Block
I30-I5A
Siblings
1

Present FY2024–FY2027.