B58.8

Toxoplasmosis with other organ involvement

FY2027Chapter 1: Certain infectious and parasitic diseases/B50–B64 Protozoal diseases

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

B58.8 is a non-billable ICD-10-CM code header for toxoplasmosis with other organ involvement. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are B58.81 Toxoplasma myocarditis, B58.82 Toxoplasma myositis, B58.83 Toxoplasma tubulo-interstitial nephropathy and B58.89 Toxoplasmosis with other organ involvement. Its coding notes include a Use additional code instruction, 3 Excludes1 entries and 5 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • code to identify resistance to antimicrobial drugs (Z16.-)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from B58 Toxoplasmosis
  • congenital toxoplasmosis (P37.1)
Also from chapter/block level (2 notes)
Inherited from B50–B64 Protozoal diseases
  • amebiasis (A06.-)
  • other protozoal intestinal diseases (A07.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (5 notes)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Includes

Further defines or gives examples of the content of the category.

Inherited from B58 Toxoplasmosis
  • infection due to Toxoplasma gondii
Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • diseases generally recognized as communicable or transmissible

More specific codes under B58.8 4