Toxoplasmosis (B58) ICD-10-CM
The B58 code range covers toxoplasmosis with 14 ICD-10-CM diagnosis codes. 11 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- infection due to Toxoplasma gondii
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.
- congenital toxoplasmosis P37.1
Codes in the B58 Range 14 codes · 11 billable
- B58 ToxoplasmosisNon-billable
- B58.0 Toxoplasma oculopathyNon-billable
- B58.00 Toxoplasma oculopathy, unspecified
- B58.01 Toxoplasma chorioretinitis
- B58.09 Other toxoplasma oculopathy
- B58.1 Toxoplasma hepatitis
- B58.2 Toxoplasma meningoencephalitis
- B58.3 Pulmonary toxoplasmosis
- B58.8 Toxoplasmosis with other organ involvementNon-billable
- B58.81 Toxoplasma myocarditis
- B58.82 Toxoplasma myositis
- B58.83 Toxoplasma tubulo-interstitial nephropathy
- B58.89 Toxoplasmosis with other organ involvement
- B58.9 Toxoplasmosis, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the B58 range.
Toxoplasma Hepatitis
Hepatitis caused by infection with the protozoan parasite, Toxoplasma gondii.
Toxoplasmosis
The acquired form of infection by Toxoplasma gondii in animals and man.
About the B58 Code Range
Toxoplasmosis is an acquired infection caused by Toxoplasma gondii. These codes distinguish where the infection affects the body.
B58.0 groups eye conditions. It separates unspecified involvement, inflammation of the retina and tissue beneath it, and other eye involvement. Other branches identify the liver (B58.1), brain and its coverings (B58.2), and lungs (B58.3). B58.8 separates heart muscle, other muscle, kidney, and other organ involvement. B58.9 identifies toxoplasmosis without a specified site.
Questions About This Page
How many billable codes are in the B58 range?
Of the 14 codes in this range, 11 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the B58 range classify?
The range classifies toxoplasmosis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
