C1742: Pressure monitoring system, compartmental intramuscular (implantable), continuous, including all components (e.g., introducer, sensor), excludes mobile (wireless) software application
C1742 is a HCPCS Level II code for pressure monitoring system, compartmental intramuscular (implantable), continuous, including all components (e.g., introducer, sensor), excludes mobile (wireless) software application. It belongs to the Outpatient Prospective Payment System section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Special coverage instructions apply
There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q4-Oct. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits: units per day
The most units of C1742 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 1 unit MAI 3: Date of Service Edit: Clinical · Nature of Equipment
- outpatient
- 1 unit MAI 3: Date of Service Edit: Clinical · Nature of Equipment
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute, no documentation overrides it. CMS MUE 2026Q4.
The CMS record for C1742
- Long descriptor
- Pressure monitoring system, compartmental intramuscular (implantable), continuous, including all components (e.g., introducer, sensor), excludes mobile (wireless) software application
- Short descriptor
- Pressure sens syst, cont im
- Added
- October 1, 2025
- BETOS
- D1A
- Pricing indicator
- 53: Other
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.
Statute.
Codes adjacent to C1742
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If C1742 is not quite right, the correct code is very often within a few positions of it.
- C1734Orthopedic/device/drug matrix for opposing bone-to-bone or soft tissue-to bone (implantable)
- C1735Catheter(s), intravascular for renal denervation, radiofrequency, including all single use system components
- C1736Catheter(s), intravascular for renal denervation, ultrasound, including all single use system components
- C1737Joint fusion and fixation device(s), sacroiliac and pelvis, including all system components (implantable)
- C1738Powered, single-use (i.e. disposable) endoscopic ultrasound-guided biopsy device
- C1739Tissue marker, uniquely detectable and identifiable with probe/sensor, any method (implantable), with delivery system
- C1740Leadless electrode, transmitter, battery (all implantable), for sequential left ventricular pacing
- C1741Anchor/screw for bone fixation, absorbable, metallic (implantable)
- C1743Scaffold, endovascular non-coronary, resorbable drug eluting, with delivery system (implantable)
- C1747Endoscope, single-use (i.e. disposable), urinary tract, imaging/illumination device (insertable)
- C1748Endoscope, single-use (i.e. disposable), upper gi, imaging/illumination device (insertable)
- C1749Endoscope, retrograde imaging/illumination colonoscope device (implantable)
- C1750Catheter, hemodialysis/peritoneal, long-term
- C1751Catheter, infusion, inserted peripherally, centrally or midline (other than hemodialysis)
- C1752Catheter, hemodialysis/peritoneal, short-term
- C1753Catheter, intravascular ultrasound