HomeKnowledgeGlossaryCommunitySign in

HMO

Medical billing & coding glossary · all terms

Definition. Health Maintenance Organization, a managed-care plan type that generally uses a defined provider network and may require primary-care coordination or referrals, subject to the plan’s rules.

You'll come across HMO while working the revenue cycle — from eligibility and claim submission to payment posting and denials. See the related terms below, or browse the full glossary and the Knowledge Hub.

Enrollment is open for October

The Medical Billing Diploma launches October 15, 2026. Enroll free now and we’ll email you when lessons open.

Enroll free for October →