Billable / Specific Code
ICD-10-CM B51.9 is the diagnosis code for Plasmodium vivax malaria without complication. This code falls under the section "Protozoal diseases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where B51.9 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, B51.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
B51.9 is the ICD-10-CM diagnosis code for "Plasmodium vivax malaria without complication". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of B51.9 is B51 ("Plasmodium vivax malaria"). B51.9 provides a more specific classification within this category.
B51.9 is located in Section B50-B64 — "Protozoal diseases" within Chapter 1 of the ICD-10-CM Tabular List.
Use B51.9 when the patients documented diagnosis matches "Plasmodium vivax malaria without complication" 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 Plasmodium vivax malaria without complication is B51.9.
Yes, B51.9 can be used as a primary diagnosis code since it is billable and specific.
B51.9 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, B51.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.