HK HCPCS Level II modifier: Specialized mental health programs for high-risk populations
HK is a HCPCS Level II modifier: “Specialized mental health programs for high-risk populations.” It adds this detail to the code it is reported with.
Official description
HKSpecialized mental health programs for high-risk populations
Short description: Spec hgh rsk mntl hlth pop p
HCPCS · United States
Medicare details
The indicators CMS publishes with HK in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Added
- Jan 1, 2003
Where HK sits
- 1GroupHCPCS modifiers
- 2Modifier HKSpecialized mental health programs for high-risk populations
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 HK mean?
HK is the HCPCS code for “Specialized mental health programs for high-risk populations” in CMS’s HCPCS Level II October 2026 release.
Where is HK in the HCPCS Level II list?
HK is listed under Modifiers.
Does Medicare cover HK?
CMS lists HK’s Medicare coverage as “Not payable by Medicare”. 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 HK
All modifiersHEMental health programHFSubstance abuse programHGOpioid addiction treatment programHHIntegrated mental health/substance abuse programHIIntegrated mental health and intellectual disability/developmental disabilities programHJEmployee assistance programHLInternHMLess than bachelor degree levelHNBachelors degree levelHOMasters degree levelHPDoctoral levelHQGroup setting