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Billing code

C575A — Respiratory disease limited consultation – hospital in-patient

Respirology in-patient limited consultation

Bill for a respirology consultation on a hospital in-patient that is less demanding and much shorter than a full one.

Watch for: Include the referrer's billing number from the signed written request; without it, it pays as a lesser assessment.

Code

C575A

Description

Respiratory disease limited consultation – hospital in-patient

FHO+ basket

Not in the FHO+ base rate basket (Schedule 2 or 2B).

Effective date

Apr 1, 2026

Termination date

No end date

Explanation

Updated October 26, 2026

Limited consultation by a respirologist for a hospital in-patient: less demanding and much shorter than a full consultation.

What it covers

C575 is a limited consultation by a specialist in Respiratory Disease for a non-emergency hospital in-patient (A199).

A limited consultation is less demanding and normally takes substantially less time than a full consultation; otherwise it has the same requirements (GP19).

Billing rules

• Needs a written, signed request naming you or the specialty, the referrer and their billing number, and the patient and health number, kept in your chart (a common hospital record is fine). Without it OHIP pays a lesser assessment (GP16).
• Same patient, same diagnosis: one consultation per two consecutive 12-month periods; a second is allowed only for an in-patient or ED patient 12 to 24 months after the first. Excess claims pay as an assessment (GP17, GP18).
• If this is your admission assessment and you are the MRP, E082 (+30%) may be added once per admission; not for transfers within the same hospital (GP42).
• Virtual care: video only, not phone (AJ2). For an in-patient you must not be the MRP, the hospital must lack a local physician with the expertise (documented by the referrer), and for a consultation the referrer must have seen the patient in person within 30 days (A69).

Common rejections

• ARF: OHIP's message is 'Missing Physician Referring Number': a consultation needs a written request from a physician or nurse practitioner, and the referrer's billing number must be on the claim (GP16).
• AT2: OHIP's message is 'Must Include Video Modality': this code is on the video-only list, so a phone claim (K301A) is refused (AJ2).

Related codes: A575, C475, C470, C476, C473

Source: Schedule of Benefits (July 1, 2026), Consultations and Visits, Respiratory Disease (47), page A199. Rules GP16–GP19.

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