B9999 — Noc for parenteral supplies
B9999 is a HCPCS Level II code for noc for parenteral supplies. It belongs to the Enteral and Parenteral Therapy 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 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits — units per day
The most units of B9999 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
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- outpatient
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
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 2026Q3.
The CMS record for B9999
- Long descriptor
- Noc for parenteral supplies
- Short descriptor
- Parenteral supp not othrws c
- Added
- January 1, 1985
- BETOS
- O1C
- Pricing indicator
- 57 — 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.
Other carrier priced.
Codes adjacent to B9999
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If B9999 is not quite right, the correct code is very often within a few positions of it.
- B5000Parenteral nutrition solution compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, renal-aminosyn-rf, nephramine, renamine-premix
- B5100Parenteral nutrition solution compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, hepatic, hepatamine-premix
- B5200Parenteral nutrition solution compounded amino acid and carbohydrates with electrolytes, trace elements, and vitamins, including preparation, any strength, stress-branch chain amino acids-freamine-hbc-premix
- B9000Enteral nutrition infusion pump - without alarmterminated
- B9002Enteral nutrition infusion pump, any type
- B9004Parenteral nutrition infusion pump, portable
- B9006Parenteral nutrition infusion pump, stationary
- B9998Noc for enteral supplies
- C1052Hemostatic agent, gastrointestinal, topical
- C1062Intravertebral body fracture augmentation with implant (e.g., metal, polymer)
- C1300Hyperbaric oxygen under pressure, full body chamber, per 30 minute intervalterminated
- C1600Catheter, transluminal intravascular lesion preparation device, bladed, sheathed (insertable)
- C1601Endoscope, single-use (i.e. disposable), pulmonary, imaging/illumination device (insertable)
- C1602Orthopedic/device/drug matrix/absorbable bone void filler, antimicrobial-eluting (implantable)
- C1603Retrieval device, insertable, laser (used to retrieve intravascular inferior vena cava filter)
- C1604Graft, transmural transvenous arterial bypass (implantable), with all delivery system components
Questions about B9999
What is HCPCS code B9999?
B9999 is a HCPCS Level II code for noc for parenteral supplies. It sits in the Enteral and Parenteral Therapy section.
Does Medicare cover B9999?
The CMS HCPCS file marks B9999 as "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.