G9520 HCPCS Level II code: Patient does not achieve final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery
G9520 is the HCPCS code for “Patient does not achieve final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
G9520Patient 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
HCPCS · United States
Medicare details
The indicators CMS publishes with G9520 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Medical care
- BETOS category
- Undefined codes
- Added
- Jan 1, 2016
Where G9520 sits
- 1G codesProcedures and professional services
- 2Active code G9520Patient does not achieve final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code G9520 mean?
G9520 is the HCPCS code for “Patient does not achieve final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgery” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover G9520?
CMS lists G9520’s Medicare coverage as “Carrier judgment” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside G9520
All G codesG9514Patient required a return to the operating room within 90 days of surgeryG9515Patient did not require a return to the operating room within 90 days of surgeryG9516Patient achieved an improvement in visual acuity, from their preoperative level, within 90 days of surgeryG9517Patient did not achieve an improvement in visual acuity, from their preoperative level, within 90 days of surgery, reason not givenG9518Documentation of active injection drug useG9519Patient achieves final refraction (spherical equivalent) +/- 1.0 diopters of their planned refraction within 90 days of surgeryG9521Total number of emergency department visits and inpatient hospitalizations less than two in the past 12 monthsG9522Total 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 givenG9523Patient discontinued from hemodialysis or peritoneal dialysisG9524Patient was referred to hospice careG9525Documentation of patient reason(s) for not referring to hospice care (e.g., patient declined, other patient reasons)G9526Patient was not referred to hospice care, reason not given