G9520 – Patient does not achieve final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG9520
- Long description
- Patient does not achieve final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery
- Short description
- Refract not +/- 1.0 w/in 90d
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
Z2Undefined codes- Added
- January 1, 2016
- Last change
- January 1, 2020 – No change
Frequently asked questions
What is HCPCS code G9520?
G9520 is a HCPCS Level II code for patient does not achieve final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery.
Does Medicare cover G9520?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby G codes
- G9512 – Individual had a pdc of 0.8 or greater
- G9513 – Individual did not have a pdc of 0.8 or greater
- G9514 – Patient required a return to the operating room within 90 days of surgery
- G9515 – Patient did not require a return to the operating room within 90 days of surgery
- G9516 – Patient achieved an improvement in visual acuity, from their preoperative level, within 90 days of surgery
- G9517 – Patient did not achieve an improvement in visual acuity, from their preoperative level, within 90 days of surgery, reason not given
- G9518 – Documentation of active injection drug use
- G9519 – Patient achieves final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery
- G9521 – Total number of emergency department visits and inpatient hospitalizations less than two in the past 12 months
- G9522 – Total number of emergency department visits and inpatient hospitalizations equal to or greater than two in the past 12 months or patient not screened, reason not given
- G9523 – Patient discontinued from hemodialysis or peritoneal dialysis
- G9524 – Patient was referred to hospice care
- G9525 – Documentation of patient reason(s) for not referring to hospice care (e.g., patient declined, other patient reasons)
- G9526 – Patient was not referred to hospice care, reason not given
- G9529 – Patient with minor blunt head trauma had an appropriate indication(s) for a head ct
- G9530 – Patient presented with a minor blunt head trauma and had a head ct ordered for trauma by an emergency care provider
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.