PatientOS is an Open Source EMR for Hospitals, Physician Offices and other Healthcare Facilities. Version 0.85 brings the following features:

- All new look and feel.
- Role based security.
- Multi-facility logic.
- Extensive tool and chart enhancements.
- Progress Notes
- Custom physician documentation
- Detailed allergy, symptom, diagnosis, problem lists.
- Automated templates .
- Charges seamless integration with clinical documentation.
- Fee schedules to markup charge items.
- Billing rules engine.
- Invoices, facility accounts.
- Hierarchical organization of data sets.
- IC9, CPT4, Snomed, Medispan drug database, OpenEHR.
- Patient Portal