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B58.9

B58.9: Toxoplasmosis, unspecified

Billable / specific codeICD-10-CM

B58.9 is a billable, specific ICD-10-CM code for toxoplasmosis, unspecified. It is valid for submission on a claim.

Check B58.9 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above B58.9

A category’s note binds every code beneath it.

Written on B58: Toxoplasmosis

  • congenital toxoplasmosis (P37.1)

Risk adjustment

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

Alphabetic index entries that lead here

  • Toxoplasma, toxoplasmosis(acquired)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under B58

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.