HMO

Medical abbreviation · Health Insurance

HMO
Stands forHealth maintenance organization
CategoriesMedical

HMO stands for Health maintenance organization, a health insurance abbreviation.

Managed care health plan that covers care only from its network of doctors and hospitals, except in emergencies, and usually requires members to choose a primary care physician who coordinates care and refers them to specialists. In exchange for these limits, HMOs typically have lower premiums and out-of-pocket costs.

Example: My HMO won't cover the dermatologist unless my PCP sends a referral first.

Usage notes

The Health Maintenance Organization Act of 1973 encouraged their growth with federal grants and a requirement that many larger employers offer an HMO option. Kaiser Permanente, with roots in the 1940s, is the best-known integrated HMO, employing its own physicians and owning hospitals. The ACA requires plans to cover emergency care at in-network cost sharing even at out-of-network hospitals. Pronounced as letters.

More health insurance abbreviations

  • GFE – Good faith estimate
  • HCC – Hierarchical condition category
  • HCPCS – Healthcare Common Procedure Coding System
  • HDHP – High-deductible health plan
  • HEDIS – Healthcare Effectiveness Data and Information Set
  • HIPAA – Health Insurance Portability and Accountability Act
  • HRA – Health reimbursement arrangement
  • HSA – Health savings account
  • ICD – International Classification of Diseases
  • ICD-10 – International Classification of Diseases, Tenth Revision
  • ICD-10-CM – ICD-10 Clinical Modification
  • ICD-10-PCS – ICD-10 Procedure Coding System

See all 107 health insurance abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.