What are the billing rules for G318A?

Not payable when the medication is provided by injection (J41). Payable only when you personally insert the implant; it can't be delegated (J41). Marked (+): add G700 when the insertion is the sole reason for the visit (J3, J41).

What is G318A often billed with?

G700 when insertion is the only reason for the visit (J3). A007 or another assessment, or a consultation such as A905, at the visit where the implant is inserted (J3).

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Billing code

G318A — Non-biodegradable subcutaneous medication implant insertion

Q: What is OHIP billing code G318A?

Insertion of a non-biodegradable long-acting subcutaneous medication implant, such as Nexplanon. Not payable when given by injection.

Contraceptive implant insertion

Bill G318 when you personally insert a non-biodegradable long-acting medication implant under the skin, such as Nexplanon.

Watch for: Not payable when the medication is given by injection, or when the insertion is delegated.

Provider	Specialist	Assistant	Anaesthetist	Non-anaesthetist
$42.00	$0.00	$0.00	$0.00	$0.00

Code: G318A
Description: Non-biodegradable subcutaneous medication implant insertion
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

Insertion of a non-biodegradable long-acting subcutaneous medication implant, such as Nexplanon. Not payable when given by injection.

What it covers

G318 is insertion of a non-biodegradable long-acting subcutaneous medication implant (J41). The Schedule gives Nexplanon as an example.

Biodegradable implants such as Zoladex are not G318; injections that don't meet G318's criteria are billed from the Injections listings on J54. Removal of an implant is billed as Z114 or Z115 (J41).

Billing rules

Not payable when the medication is provided by injection (J41).
Payable only when you personally insert the implant; it can't be delegated (J41).
Marked (+): add G700 when the insertion is the sole reason for the visit (J3, J41).
G700 is not payable in hospital, and is paid at 15% of its fee for patients enrolled to a capitation-based group (J3).
Payable in addition to an assessment at the same visit (J3).
FHO: not listed in Schedule 2 (core services), so not part of the base rate basket (Agreement pp.75–82).

Often billed with

G700 when insertion is the only reason for the visit (J3).
A007 or another assessment, or a consultation such as A905, at the visit where the implant is inserted (J3).

Related codes: Z114, Z115, G372, G373, G700, G378

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Endocrinology and Metabolism, page J41

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