G9966 HCPCS Level II code: Children who were screened for risk of developmental, behavioral and social delays using a standardized tool with interpretation and report
CMS terminated G9966: its last date of service was Dec 31, 2020. It stays here for looking up older claims; newer services need a current code.
Official description
G9966Children who were screened for risk of developmental, behavioral and social delays using a standardized tool with interpretation and report
Short description: Scrn, inter, report child
HCPCS · United States
Medicare details
The indicators CMS publishes with G9966 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, 2018
- Terminated after
- Dec 31, 2020
Where G9966 sits
- 1G codesProcedures and professional services
- 2Terminated G9966Children who were screened for risk of developmental, behavioral and social delays using a standardized tool with interpretation and report
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
Is HCPCS code G9966 still valid?
No. CMS terminated G9966; its last date of service was Dec 31, 2020. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G9966?
CMS lists G9966’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 G9966
All G codesG9960Documentation of medical reason(s) for prescribing systemic antimicrobialsG9961Systemic antimicrobials prescribedG9962Embolization endpoints are documented separately for each embolized vessel and ovarian artery angiography or embolization performed in the presence of variant uterine artery…G9963Embolization endpoints are not documented separately for each embolized vessel or ovarian artery angiography or embolization not performed in the presence of variant uterine…G9964Patient received at least one well-child visit with a pcp during the performance periodG9965Patient did not receive at least one well-child visit with a pcp during the performance periodG9967Children who were not screened for risk of developmental, behavioral and social delays using a standardized tool with interpretation and reportG9968Patient was referred to another clinician or specialist during the measurement periodG9969Clinician who referred the patient to another clinician received a report from the clinician to whom the patient was referredG9970Clinician who referred the patient to another clinician did not receive a report from the clinician to whom the patient was referredG9974Dilated macular exam performed, including documentation of the presence or absence of macular thickening or geographic atrophy or hemorrhage and the level of macular degeneration…G9975Documentation of medical reason(s) for not performing a dilated macular examination