M1359 HCPCS Level II code: Index assessment during the denominator period when the suicidal ideation and/or behavior symptoms or increased suicide risk by clinician determination occurs…
M1359 is the HCPCS code for “Index assessment during the denominator period when the suicidal ideation and/or behavior symptoms or increased suicide risk by clinician determination occurs and a non-zero c-ssrs score is obtained” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
M1359Index assessment during the denominator period when the suicidal ideation and/or behavior symptoms or increased suicide risk by clinician determination occurs and a non-zero c-ssrs score is obtained
Short description: Indx suicd idea, no 0 scr
HCPCS · United States
Medicare details
The indicators CMS publishes with M1359 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, 2024
Where M1359 sits
- 1M codesMedical services and quality measures
- 2Active code M1359Index assessment during the denominator period when the suicidal ideation and/or behavior symptoms or increased suicide risk by clinician determination occurs and a non-zero c-ssrs score is obtained
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 M1359 mean?
M1359 is the HCPCS code for “Index assessment during the denominator period when the suicidal ideation and/or behavior symptoms or increased suicide risk by clinician determination occurs and a non-zero c-ssrs score is obtained” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover M1359?
CMS lists M1359’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 M1359
All M codesM1353Patients who did not have a completed suicide safety plan initiated, reviewed or updated in collaboration with their clinician (concurrent or within 24 hours) of the index…M1354Patients who did not have a suicide safety plan initiated, reviewed, or updated or reviewed and updated in collaboration with the patient and their clinician concurrent or within…M1355Suicide risk based on their clinician's evaluation or a clinician-rated toolM1356Patients who died during the measurement periodM1357Patients who had a reduction in suicidal ideation and/or behavior upon follow-up assessment within 120 days of index assessmentM1358Patients who did not have a reduction in suicidal ideation and/or behavior upon follow-up assessment within 120 days of index assessmentM1360Suicidal ideation and/or behavior symptoms based on the c-ssrsM1361Suicide risk based on their clinician's evaluation or a clinician-rated toolM1362Patients who died during the measurement periodM1363Patients who did not have a follow-up assessment within 120 days of the index assessmentM1364Calculated 10-year ascvd risk score of >= 20 percent during the performance periodM1365Patient encounter during the performance period with hospice and palliative care specialty code 17