How do I fix OHIP error code O9?

Check whether P007 (or P008, postnatal care in office) was paid for the same patient around the same date. If the visit was routine care of a well postpartum patient, it is included and nothing more is payable. If the visit was for an illness resulting from or associated with the pregnancy, the Schedule allows added home or hospital visits on a per-visit basis (K2, paragraph 3). Send an RAI explaining the illness and the diagnosis. Send it through eSubmit, or on form 0918-84, within 7 months of the RA date.

When shouldn't I resubmit a O9 claim?

The visit was routine postpartum care of a well patient. The claim is already on your Remittance Advice. Use an RAI, not a new claim.

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Error code

O9 — Not allowed in addition to post-natal care

Q: What does OHIP error code O9 mean?

O9 means the visit is included in post-natal care already paid. Routine postpartum visits in hospital or home are part of P007.

Included in post-natal care

The visit is included in post-natal care already claimed; routine postpartum visits in hospital or at home are part of P007.

What to do: Check whether P007 or P008 was paid around that date; routine care of a well postpartum patient isn't payable separately.

Code: O9
Description: Not allowed in addition to post-natal care

Explanation

Updated October 26, 2026

O9 means the visit is included in post-natal care already paid. Routine postpartum visits in hospital or home are part of P007.

What it means

Code O9 means OHIP did not pay this line separately because it is not allowed in addition to post-natal care that has been claimed.

In the Schedule of Benefits, postnatal care in hospital and/or home (P007) is the initial assessment of a well postpartum patient plus later assessments of the well patient in hospital or at home, until the patient's first office visit (Obstetrics preamble, K1). Those routine visits are part of P007 and are not billed one by one.

Common causes

A hospital or home assessment of a well postpartum patient billed on top of P007
Two physicians billing postpartum care for the same patient
A visit for an unrelated or complicating illness billed without a diagnosis that shows it was not routine postpartum care

How to fix it

Check whether P007 (or P008, postnatal care in office) was paid for the same patient around the same date.
If the visit was routine care of a well postpartum patient, it is included and nothing more is payable.
If the visit was for an illness resulting from or associated with the pregnancy, the Schedule allows added home or hospital visits on a per-visit basis (K2, paragraph 3). Send an RAI explaining the illness and the diagnosis. Send it through eSubmit, or on form 0918-84, within 7 months of the RA date.

Don't resubmit if

The visit was routine postpartum care of a well patient.
The claim is already on your Remittance Advice. Use an RAI, not a new claim.

How APEX handles it

APEX reads your error reports and remittance advice from MCEDT and lists claims rejected with this code in its Correction Centre for you to correct and resubmit. See how APEX works · Pricing

Related codes: O5, O4, O1