G8418 HCPCS code: Bmi is documented below normal parameters and a follow-up plan is documented
G8418 is the HCPCS Level II code for bmi is documented below normal parameters and a follow-up plan is documented. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case.
Code details
| Field | Value |
|---|---|
| Section | G codes — Procedures and professional services (temporary) |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 00 — Not separately priced by Medicare |
| BETOS category | M5D |
| Added | 2008-01-01 |
| Last action effective | 2014-01-01 |
What changed for G8418
- 2008-01-01: G8418 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code G8418?
G8418 is the HCPCS Level II code for bmi is documented below normal parameters and a follow-up plan is documented. Short descriptor: "Calc bmi blw low param f/u".
Does Medicare cover G8418?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Related G84 codes
- G8400 — Patient with central dual-energy x-ray absorptiometry (dxa) results not documented, reason not given
- G8401 — Clinician documented that patient was not an eligible candidate for screening
- G8404 — Lower extremity neurological exam performed and documented
- G8405 — Lower extremity neurological exam not performed
- G8406 — Clinician documented that patient was not an eligible candidate for lower extremity neurological exam measure
- G8410 — Footwear evaluation performed and documented
- G8415 — Footwear evaluation was not performed
- G8416 — Clinician documented that patient was not an eligible candidate for footwear evaluation measure
- G8417 — Bmi is documented above normal parameters and a follow-up plan is documented
- G8419 — Bmi documented outside normal parameters, no follow-up plan documented, no reason given
- G8420 — Bmi is documented within normal parameters and no follow-up plan is required
- G8421 — Bmi not documented and no reason is given
Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.
Next steps
- Run a reimbursement report for a device billed under G8418
- Watch G8418 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G8418
Sources: CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.