C7900 — Service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, 15-29 minutes, provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service
C7900 is a HCPCS Level II code for service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, 15-29 minutes, provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service. It belongs to the Outpatient Prospective Payment System section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
The CMS record for C7900
- Long descriptor
- Service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, 15-29 minutes, provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service
- Short descriptor
- Hopd mntl hlt, 15-29 min
- Added
- January 1, 2023
- BETOS
- M2A
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to C7900
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If C7900 is not quite right, the correct code is very often within a few positions of it.
- C7564Percutaneous transluminal mechanical thrombectomy, vein(s), including intraprocedural pharmacological thrombolytic injections and fluoroscopic guidance with intravascular ultrasound (noncoronary vessel(s)) during diagnostic evaluation and/or therapeutic intervention, including radiological supervision and interpretation
- C7565Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (i.e., open, laparoscopic, robotic), recurrent, including implantation of mesh or other prosthesis when performed, total length of defect(s) less than 3 cm, reducible with removal of total or near total non-infected mesh or other prosthesis at the time of initial or recurrent anterior abdominal hernia repair or parastomal hernia repair
- C7566Arthrodesis, interphalangeal joints, with or without internal fixation, with autografts (includes obtaining grafts)
- C7567Bronchoscopy, rigid or flexible, including fluoroscopic guidance when performed, with transbronchial needle aspiration biopsy(s), trachea, main stem and/or lobar bronchus(i), with computer-assisted image-guided navigation
- C7568Catheter placement in coronary artery(ies) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation, with intravascular doppler velocity and/or pressure derived coronary flow reserve measurement (initial coronary vessel or graft) during coronary angiography including pharmacologically induced stress
- C7569Percutaneous transluminal coronary angioplasty, single major coronary artery or branch with endoluminal imaging of initial coronary vessel or graft using intravascular ultrasound (ivus) or optical coherence tomography (oct) during diagnostic evaluation and/or therapeutic intervention including imaging supervision, interpretation and report
- C7570Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation with intraprocedural coronary fractional flow reserve (ffr) with 3d functional mapping of color-coded ffr values for the coronary tree, derived from coronary angiogram data, for real-time review and interpretation of possible atherosclerotic stenosis(es) intervention (list separately in addition to code for primary procedure)
- C7571Percutaneous transluminal coronary angioplasty, single major coronary artery or branch with percutaneous transluminal coronary lithotripsy
- C7901Service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, 30-60 minutes, provided remotely by hospital staff who are licensed to provided mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service
- C7902Service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, each additional 15 minutes, provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service (list separately in addition to code for primary service)
- C7903Group psychotherapy service for diagnosis, evaluation, or treatment of a mental health or substance use disorder provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service
- C8000Support device, extravascular, for arteriovenous fistula (implantable)
- C80013d anatomical segmentation imaging for preoperative planning, data preparation and transmission, obtained from previous diagnostic computed tomographic or magnetic resonance examination of the same anatomy
- C8002Preparation of skin cell suspension autograft, automated, including all enzymatic processing and device components (do not report with manual suspension preparation)
- C8003Implantation of medial knee extraarticular implantable shock absorber spanning the knee joint from distal femur to proximal tibia, open, includes measurements, positioning and adjustments, with imaging guidance (e.g., fluoroscopy)
- C8004Simulation angiogram with use of a pressure-generating catheter (e.g., one-way valve, intermittently occluding), inclusive of all radiological supervision and interpretation, intraprocedural roadmapping, and imaging guidance necessary to complete the angiogram, for subsequent therapeutic radioembolization of tumors
Questions about C7900
What is HCPCS code C7900?
C7900 is a HCPCS Level II code for service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, 15-29 minutes, provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service. It sits in the Outpatient Prospective Payment System section.
Does Medicare cover C7900?
The CMS HCPCS file marks C7900 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.