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ICD-10-CM 2027 diagnosis code

B58.8Toxoplasmosis with other organ involvement

Not billable — use a more specific code

B58.8 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About B58.8

B58.8 is the ICD-10-CM diagnosis code for toxoplasmosis with other organ involvement. It belongs to category B58 (toxoplasmosis), block B50-B64 (protozoal diseases) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within B58, choose B58.8 (with other organ involvement) only when documentation doesn't support a more specific option: toxoplasma oculopathy (B58.0), toxoplasma hepatitis (B58.1), toxoplasma meningoencephalitis (B58.2), pulmonary toxoplasmosis (B58.3) and unspecified (B58.9).

To report this condition, pick the subcode that matches the documentation: B58.81 (myocarditis), B58.82 (myositis), B58.83 (nephropathy) and B58.89 (involvement).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under B58.8

Notes that apply from higher levels

Instructions written at a parent level also apply to B58.8.

› From B58 Toxoplasmosis
Includes
  • infection due to Toxoplasma gondii
Excludes1
  • congenital toxoplasmosis (P37.1)

Broader instructions also apply from B50-B64 Protozoal diseases and Chapter 1: Certain infectious and parasitic diseases.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about B58.8

Is B58.8 billable?

No. B58.8 is a header code. Report one of its more specific subcodes instead.