MCMedicalCodingSoftware
B58.81

B58.81: Toxoplasma myocarditis

Billable / specific codeICD-10-CM

B58.81 is a billable, specific ICD-10-CM code for toxoplasma myocarditis. It is valid for submission on a claim.

Check B58.81 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above B58.81

A category’s note binds every code beneath it.

Written on B58: Toxoplasmosis

  • congenital toxoplasmosis (P37.1)

Other codes that can never be billed with B58.81

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • I41Myocarditis in diseases classified elsewhere

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

B58.81 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56625Billing and Coding: Echocardiography
  • A56781Billing and Coding: Transthoracic Echocardiography (TTE)
  • A57306Billing and Coding: Transthoracic Echocardiography (TTE)
  • A57326Billing and Coding: Electrocardiograms

Alphabetic index entries that lead here

  • Myocarditis›in›toxoplasmosis(acquired)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under B58.8

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.