Billing code
G231A — Somatic or peripheral nerve, one nerve or site, NOS
Unlisted nerve block, first
Bill G231 for a block of one somatic or peripheral nerve or site not specifically listed; add G223 for each extra.
Watch for: Nerves with their own listing, such as femoral (G243) or intercostal (G220), must use those codes.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $34.10 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- G231A
- Description
- Somatic or peripheral nerve, one nerve or site, NOS
- FHO+ basket
- Covered by the FHO+ base rate payment for enrolled patients, and shadow billed at 30% (50% for Schedule 2B procedures).
- Effective date
- Apr 1, 2025
- Termination date
- No end date
Explanation
Updated October 26, 2026
Block of one somatic or peripheral nerve or site not specifically listed elsewhere. Each additional nerve or site is G223.
What it covers
G231 is a nerve block of one somatic or peripheral nerve or site that isn't specifically listed, under Nerve Blocks – Peripheral/Other Injections (J81).
Additional nerves or sites are G223 (J81). Nerves with their own listings, such as femoral (G243), sciatic (G230) or intercostal (G220), use those codes (J80, J81).
Billing rules
- Add G223 for each additional nerve or site (J81).
- Not payable when you give the block in conjunction with your own diagnostic, therapeutic or surgical procedure, except G224 for a post-operative pain block (J79).
- Overall maximum of 8 nerve blocks per patient per day; a block defined as bilateral counts as two (J79).
- Image guidance fees (nerve stimulation, ultrasound, fluoroscopy) aren't payable in addition (J79).
- Topical anaesthesia or local infiltration used as an anaesthetic isn't payable, and injection codes listed elsewhere can't be added for the same injection (J79).
- Add E958 (+50%) when alcohol or another sclerosing solution is used (J82).
- FHO: a Schedule 2 core (in-basket) service (Agreement p.77).
Often billed with
- G223 for additional nerves or sites (J81).
- E958 when a sclerosing solution is used (J82).
Related codes: G223, G228, G061, G060, G264, E958
Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Nerve Blocks - Peripheral/Other Injections, page J81; preamble J79.
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