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A36.81

Diphtheritic cardiomyopathy

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
A00-B99chapter
Excludes1
  • certain localized infections - see body system-related chapters
Excludes2
  • carrier or suspected carrier of infectious disease (Z22.-)Z22.-
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
  • influenza and other acute respiratory infections (J00-J22)J00-J22

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

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

Instructional notes 3
A36.81code
Inclusion terms
  • Diphtheritic myocarditis
A00-B99chapter
Includes
  • diseases generally recognized as communicable or transmissible
Use additional code
  • code to identify resistance to antimicrobial drugs (Z16.-)Z16.-
Index entries leading here 2
  • Myocarditis (with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile) I51.4
  • Diphtheria, diphtheritic (gangrenous) (hemorrhagic) A36.9
Alongside this code 6 same parent — A36.8
A36.82 Diphtheritic radiculomyelitis A36.83 Diphtheritic polyneuritis A36.84 Diphtheritic tubulo-interstitial nephropathy A36.85 Diphtheritic cystitis A36.86 Diphtheritic conjunctivitis A36.89 Other diphtheritic complications
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

CMS22HCC85 CMS28HCC227 ESRD21HCC85 ESRD24HCC85 RX08HCC186

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

This code

Billable
yes
Code set
FY2026
Parent
A36.8
Block
A30-A49
Siblings
6

Present FY2024–FY2027.