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Billing code

A002A — 18 month Developmental Assessment

Enhanced 18-month well-baby visit

Bill A002 for well-baby care plus an 18-month developmental screen and review of a parent-completed tool, for a child aged 17 to 24 months.

Watch for: Only for ages 17 to 24 months, and the chart must record the screen and any concerns; otherwise bill A007 well-baby care.

Code

A002A

Description

18 month Developmental Assessment

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

Enhanced 18-month well-baby visit: well-baby care plus a developmental screen and review of a parent-completed tool, age 17 to 24 months.

What it covers

A002 is billed when the physician does all of the following for a child aged 17 to 24 months: well-baby care (a complete examination with weight and measurements, and instructions to the parents); an 18-month age-appropriate developmental screen; and a review with the parent or caregiver of a brief standardized tool they completed that helps identify children at risk of a developmental disorder (GP34, A4).

The Schedule gives the Rourke Baby Record as an example of the screen and the Nipissing District Developmental Screen as an example of the parent tool (GP34).

Billing rules

• Only for children aged 17 to 24 months (GP34).
• Payable only when the chart records the developmental screen and any concerns found in the review of the parent-completed tool, in addition to the usual well-baby care record (GP34).
• Detention (K001) can only start after 60 minutes (GP30).
• A002 is not on the Appendix J list, so it can't be billed by video or telephone (A68, AJ1, AJ2).
• Other well-baby visits in the first two years are billed as A007 (A4, GP34). Paediatricians bill A268 (A170).

Common rejections

• A2A: The child wasn't 17 to 24 months old on the service date. Bill A007 well-baby care for other ages, and check the date of birth on the claim.
• VJ7: OHIP received the claim more than three months after the service date (GP9). If it was first sent on time, use the stale-dated process.
• EH2: The health card version code doesn't match the Ministry's record. Get the current version code and resubmit.
• R02: OHIP's description is 'invalid HSN': the health number on the claim isn't valid. Check it against the child's card.

Related codes: A007, A268, K017

Source: Schedule of Benefits (July 1, 2026), Consultations and Visits, Family Practice & Practice in General (00), page A4; General Preamble GP34 (enhanced 18 month well baby visit)

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