G9510 HCPCS Level II code: Adult patients 18 years of age or older with major depression or dysthymia who did not reach remission at twelve months as demonstrated by a twelve month…
G9510 is the HCPCS code for “Adult patients 18 years of age or older with major depression or dysthymia who did not reach remission at twelve months as demonstrated by a twelve month (+/-60 days) phq-9 or phq-9m score of less…” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
G9510Adult patients 18 years of age or older with major depression or dysthymia who did not reach remission at twelve months as demonstrated by a twelve month (+/-60 days) phq-9 or phq-9m score of less than 5. either phq- 9 or phq-9m score was not assessed or is greater than or equal to 5
Short description: Remis12m not phq-9 score <5
HCPCS · United States
Medicare details
The indicators CMS publishes with G9510 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 G9510 sits
- 1G codesProcedures and professional services
- 2Active code G9510Adult patients 18 years of age or older with major depression or dysthymia who did not reach remission at twelve months as demonstrated by a twelve month (+/-60 days) phq-9 or phq-9m score of less than 5. either phq- 9 or phq-9m score was not assessed or is greater than or equal to 5
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 G9510 mean?
G9510 is the HCPCS code for “Adult patients 18 years of age or older with major depression or dysthymia who did not reach remission at twelve months as demonstrated by a twelve month (+/-60 days) phq-9 or phq-9m score of less than 5. either phq- 9 or phq-9m score was not assessed or is greater than or equal to 5” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover G9510?
CMS lists G9510’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 G9510
All G codesG9504Documented reason for not assessing hepatitis b virus (hbv) status (e.g., patient not initiating anti-tnf therapy, patient declined) prior to initiating anti-tnf therapyG9505Antibiotic regimen prescribed within 10 days after onset of symptoms for documented medical reasonG9506Biologic immune response modifier prescribedG9507Documentation that the patient is on a statin medication or has documentation of a valid contraindication or exception to statin medications; contraindications/exceptions that…G9508Documentation that the patient is not on a statin medicationG9509Adult patients 18 years of age or older with major depression or dysthymia who reached remission at twelve months as demonstrated by a twelve month (+/-60 days) phq-9 or phq-9m…G9511Index event date phq-9 or phq-9m score greater than 9 documented during the twelve month denominator identification periodG9512Individual had a pdc of 0.8 or greaterG9513Individual did not have a pdc of 0.8 or greaterG9514Patient 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 surgery