ICD-10-CM B58 is the diagnosis code for Toxoplasmosis. This code falls under the section "Protozoal diseases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as B58. They are mutually exclusive:
Understanding where B58 sits in the ICD-10-CM classification helps ensure proper coding:
No, B58 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
B58 is the ICD-10-CM diagnosis code for "Toxoplasmosis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
B58 is located in Section B50-B64 — "Protozoal diseases" within Chapter 1 of the ICD-10-CM Tabular List.
B58 has 6 sub-code(s) that provide more specific detail: B58.0, B58.1, B58.2, B58.3, B58.8 and more.
Use B58 when the patients documented diagnosis matches "Toxoplasmosis" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Toxoplasmosis is B58.
No, B58 is non-billable. Use a more specific sub-code for primary diagnosis billing.
B58 is in Chapter 1 of the ICD-10-CM Tabular List.
Type 1 Excludes for B58 include: congenital toxoplasmosis (P37.1).
Yes, B58 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.