473 OHIP code: Chronic sinusitis

473 is the OHIP diagnostic code for “Chronic sinusitis” in Ontario Ministry of Health’s March 2026 release, in effect from Mar 13, 2026.

Official description

473

Chronic sinusitis

OHIP diagnostic codes (ICD-9) · Ontario

Notes for 473

Ontario Ministry of Health’s list gives no includes, excludes or other notes for 473 or the headings above it.

Where 473 sits

  1. 1SectionDiseases of the Respiratory System
  2. 2Valid code 473Chronic sinusitis

Source and release

Data release
OHIP · March 2026
Effective date
Mar 13, 2026

This page is built from the OHIP catalog that Vero Codes reads when it suggests codes: Ontario Ministry of Health’s March 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does OHIP diagnostic code 473 mean?

473 is the OHIP diagnostic code for “Chronic sinusitis” in Ontario Ministry of Health’s OHIP March 2026 release.

Where is 473 in the OHIP list?

473 is listed under Diseases of the Respiratory System.

What coding notes apply to 473?

Ontario Ministry of Health’s list gives no includes, excludes or other notes for 473 or the headings above it.

Which OHIP release does this page use?

It uses Ontario Ministry of Health’s March 2026 release, in effect from Mar 13, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.