B58 - Toxoplasmosis

Version 2023
Short Description:Toxoplasmosis
Long Description:Toxoplasmosis
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Certain infectious and parasitic diseases (A00–B99)
    • Protozoal diseases (B50-B64)
      • Toxoplasmosis (B58)

B58 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of toxoplasmosis. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Clinical Information

Specific Coding for Toxoplasmosis

Non-specific codes like B58 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for toxoplasmosis:

  • NON-BILLABLE CODE - B58.0 for Toxoplasma oculopathy
  • BILLABLE CODE - Use B58.00 for Toxoplasma oculopathy, unspecified
  • BILLABLE CODE - Use B58.01 for Toxoplasma chorioretinitis
  • BILLABLE CODE - Use B58.09 for Other toxoplasma oculopathy
  • BILLABLE CODE - Use B58.1 for Toxoplasma hepatitis
  • BILLABLE CODE - Use B58.2 for Toxoplasma meningoencephalitis
  • BILLABLE CODE - Use B58.3 for Pulmonary toxoplasmosis
  • NON-BILLABLE CODE - B58.8 for Toxoplasmosis with other organ involvement
  • BILLABLE CODE - Use B58.81 for Toxoplasma myocarditis
  • BILLABLE CODE - Use B58.82 for Toxoplasma myositis
  • BILLABLE CODE - Use B58.83 for Toxoplasma tubulo-interstitial nephropathy
  • BILLABLE CODE - Use B58.89 for Toxoplasmosis with other organ involvement
  • BILLABLE CODE - Use B58.9 for Toxoplasmosis, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:


This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Patient Education


Toxoplasmosis is a disease caused by the parasite Toxoplasma gondii. More than 60 million people in the U.S. have the parasite. Most of them don't get sick. But the parasite causes serious problems for some people. These include people with weak immune systems and babies whose mothers become infected for the first time during pregnancy. Problems can include damage to the brain, eyes, and other organs.

You can get toxoplasmosis from :

Most people with toxoplasmosis don't need treatment. There are drugs to treat it for pregnant women and people with weak immune systems.

Centers for Disease Control and Prevention

[Learn More in MedlinePlus]

Code History