HCPCS Level II B4185: Parenteral Nutrition Solution, 10g Lipids

HCPCS Level II code B4185 describes a parenteral nutrition solution, not otherwise specified, containing 10 grams of lipids, intended as an enteral/parenteral nutrition supply for intravenous administration; service type: parenteral nutrition supply; typical site of service: inpatient hospital, outpatient infusion center, or home infusion.

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HCPCS Level II B4185: Parenteral Nutrition Solution, 10g Lipids

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Get alerted when payer policies referencing B4185 are released or updated.

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Clinical & Coding Specifications

Clinical Context

A typical patient receiving B4185 is an adult inpatient with inadequate oral or enteral intake requiring parenteral lipid supplementation as part of total parenteral nutrition (TPN). Example: a 58-year-old patient hospitalized for severe small bowel obstruction with prolonged ileus after multiple abdominal surgeries. The patient is nil per os for more than 7–10 days and has weight loss and negative nitrogen balance. A central venous catheter is placed, and the nutrition support team prescribes a parenteral nutrition solution that includes 10 grams of lipid emulsion represented by B4185 to provide essential fatty acids and non-protein calories.

Clinical workflow:

Admission and nutritional assessment by hospitalist and dietitian, with calculation of caloric, protein, electrolyte, and lipid needs.
Order for parenteral nutrition written by the attending or consulting physician; pharmacy compounds or dispenses the parenteral solution including 10 g lipids per the prescribed formulation.
Central venous access placement (if needed) performed by interventional radiology or surgical team; catheter dressings and site care documented.
Administration by nursing with infusion pump, monitoring for infusion reactions, hypertriglyceridemia, and catheter complications.
Daily multidisciplinary review (physician, dietitian, pharmacist, nursing) with laboratory monitoring (triglycerides, electrolytes, glucose, liver function tests) and adjustment of PN components as indicated.
Billing: facility or outpatient infusion supplier bills B4185 to reflect the parenteral nutrition solution component of the compounded PN that contains 10 grams of lipids, using applicable modifiers for payer-specific circumstances.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`36460`	Administration of subcutaneous or intramuscular injection; initial 15 minutes of continuous infusion (note: used for billing infusion services when applicable)	Used for documenting administration time-based components when infusion services for PN lipids are billed in procedural settings; may be applicable in outpatient infusion contexts.
`36465`	Injection of a substance directly into a catheter or port (accessing implanted port)	Used when accessing a central venous port for administration of parenteral nutrition lipid components.
`36556`	Insertion of non-tunneled centrally inserted central venous catheter, age 5 years or older, with subcutaneous port or pump (for PN access procedures)	Used when central venous access is obtained for TPN administration; relates to the access required for delivering `B4185`.
`36561`	Insertion of tunneled centrally inserted central venous catheter, without subcutaneous port or pump (long-term PN access)	Performed when long-term PN access is needed; commonly precedes ongoing billing for PN solutions.
`96413`	Chemotherapy administration by intravenous infusion technique, up to 1 hour, single or initial substance/drug	Although a chemotherapy code, infusion administration codes like this are sometimes used by outpatient infusion centers to bill time-based infusion services; analogous administration coding is used for PN in some outpatient settings.
`96365`	Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour	Used in outpatient infusion settings to capture time-based administration services for PN lipids when applicable.

Related Modifiers

6 rows

Modifier	Description	When to Use
78	CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…	- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
52	Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…	- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
53	Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…	- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
26	Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…	- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
62	Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…	- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
80	CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…	- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…

Related Provider Taxonomies

8 rows

Taxonomy Code	Specialty	Notes
207R00000X	Internal Medicine Physician	A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults…
174M00000X	Veterinarian	A doctor of veterinary medicine, trained and authorized to practice veterinarian medicine and surgery.
193200000X	Multi-Specialty Group	A business group of one or more individual practitioners, who practice with different areas of specialization.
2083B0002X	Obesity Medicine (Preventive Medicine) Physician	A physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the ge…
2085B0100X	Body Imaging Physician	A Radiology doctor of Osteopathy that specializes in Body Imaging.
207RH0000X	Hematology (Internal Medicine) Physician	An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, cl…
372500000X	Chore Provider	An individual who provides home maintenance services required to sustain a safe, sanitary living environment for individuals who because of age or dis…
163WC1400X	College Health Registered Nurse	Nursing Service Providers · Registered Nurse

Related ICD-10-CM Codes

28 rows

ICD-10-CM Code	Description
A41.9	Sepsis, unspecified organism
B20	Human immunodeficiency virus [HIV] disease
C78.7	Secondary malignant neoplasm of liver and intrahepatic bile duct
D50.9	Iron deficiency anemia, unspecified
D63.0	Anemia in neoplastic disease
D64.9	Anemia, unspecified
E40	Kwashiorkor
E43	Unspecified severe protein-calorie malnutrition
E44.1	Mild protein-calorie malnutrition
E86.0	Dehydration

Showing 1–10 of 28

HCPCS Level II B4034: Enteral Feeding Supply Kit, Syringe-Fed Per Day

HCPCS-B4035-ENTERAL-FEEDING-SUPPLY-KIT-PUMP-FED-PER-DAY

HCPCS Level II B4035: Enteral Feeding Supply Kit, Pump-Fed, Per Day

HCPCS-B4036-ENTERAL-FEEDING-SUPPLY-KIT-GRAVITY-FED-DAILY

HCPCS Level II B4036: Enteral Feeding Supply Kit, Gravity-Fed, Per Day

HCPCS-B4081-NASOGASTRIC-TUBING-WITH-STYLET

HCPCS Level II B4081: Nasogastric Tubing With Stylet

HCPCS-B4082-NASOGASTRIC-TUBING-WITHOUT-STYLET

HCPCS Level II B4082: Nasogastric Tubing Without Stylet

HCPCS-B4083-LEVINE-STOMACH-TUBE-NASOGASTRIC-SUPPLY

HCPCS Level II B4083: Levine Stomach Tube

HCPCS-B4087-GASTROSTOMY-JEJUNOSTOMY-TUBE-STANDARD

HCPCS Level II B4087: Gastrostomy/Jejunostomy Feeding Tube, Standard

HCPCS-B4088-LOW-PROFILE-GASTROSTOMY-JEJUNOSTOMY-TUBE

HCPCS Level II B4088: Low-Profile Gastrostomy/Jejunostomy Tube

HCPCS-B4100-FOOD-THICKENER-ORAL-PER-OUNCE

HCPCS Level II B4100: Food Thickener, Oral, Per Ounce

HCPCS-B4102-ENTERAL-FLUID-ELECTROLYTE-REPLACEMENT-FORMULA-ADULT

HCPCS Level II B4102: Enteral Formula for Fluid and Electrolyte Replacement

Showing 1–10 of 50

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Clinical & Coding Specifications

Clinical Context

Clinical workflow:

Admission and nutritional assessment by hospitalist and dietitian, with calculation of caloric, protein, electrolyte, and lipid needs.
Order for parenteral nutrition written by the attending or consulting physician; pharmacy compounds or dispenses the parenteral solution including 10 g lipids per the prescribed formulation.
Central venous access placement (if needed) performed by interventional radiology or surgical team; catheter dressings and site care documented.
Administration by nursing with infusion pump, monitoring for infusion reactions, hypertriglyceridemia, and catheter complications.
Daily multidisciplinary review (physician, dietitian, pharmacist, nursing) with laboratory monitoring (triglycerides, electrolytes, glucose, liver function tests) and adjustment of PN components as indicated.
Billing: facility or outpatient infusion supplier bills B4185 to reflect the parenteral nutrition solution component of the compounded PN that contains 10 grams of lipids, using applicable modifiers for payer-specific circumstances.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`36460`	Administration of subcutaneous or intramuscular injection; initial 15 minutes of continuous infusion (note: used for billing infusion services when applicable)	Used for documenting administration time-based components when infusion services for PN lipids are billed in procedural settings; may be applicable in outpatient infusion contexts.
`36465`	Injection of a substance directly into a catheter or port (accessing implanted port)	Used when accessing a central venous port for administration of parenteral nutrition lipid components.
`36556`	Insertion of non-tunneled centrally inserted central venous catheter, age 5 years or older, with subcutaneous port or pump (for PN access procedures)	Used when central venous access is obtained for TPN administration; relates to the access required for delivering `B4185`.
`36561`	Insertion of tunneled centrally inserted central venous catheter, without subcutaneous port or pump (long-term PN access)	Performed when long-term PN access is needed; commonly precedes ongoing billing for PN solutions.
`96413`	Chemotherapy administration by intravenous infusion technique, up to 1 hour, single or initial substance/drug	Although a chemotherapy code, infusion administration codes like this are sometimes used by outpatient infusion centers to bill time-based infusion services; analogous administration coding is used for PN in some outpatient settings.
`96365`	Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour	Used in outpatient infusion settings to capture time-based administration services for PN lipids when applicable.

Related Modifiers

6 rows

Modifier	Description	When to Use
78	CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…	- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
52	Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…	- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
53	Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…	- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
26	Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…	- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
62	Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…	- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
80	CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…	- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…

Related Provider Taxonomies

8 rows

Taxonomy Code	Specialty	Notes
207R00000X	Internal Medicine Physician	A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults…
174M00000X	Veterinarian	A doctor of veterinary medicine, trained and authorized to practice veterinarian medicine and surgery.
193200000X	Multi-Specialty Group	A business group of one or more individual practitioners, who practice with different areas of specialization.
2083B0002X	Obesity Medicine (Preventive Medicine) Physician	A physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the ge…
2085B0100X	Body Imaging Physician	A Radiology doctor of Osteopathy that specializes in Body Imaging.
207RH0000X	Hematology (Internal Medicine) Physician	An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, cl…
372500000X	Chore Provider	An individual who provides home maintenance services required to sustain a safe, sanitary living environment for individuals who because of age or dis…
163WC1400X	College Health Registered Nurse	Nursing Service Providers · Registered Nurse

Related ICD-10-CM Codes

28 rows

ICD-10-CM Code	Description
A41.9	Sepsis, unspecified organism
B20	Human immunodeficiency virus [HIV] disease
C78.7	Secondary malignant neoplasm of liver and intrahepatic bile duct
D50.9	Iron deficiency anemia, unspecified
D63.0	Anemia in neoplastic disease
D64.9	Anemia, unspecified
E40	Kwashiorkor
E43	Unspecified severe protein-calorie malnutrition
E44.1	Mild protein-calorie malnutrition
E86.0	Dehydration

Showing 1–10 of 28

HCPCS Level II B4034: Enteral Feeding Supply Kit, Syringe-Fed Per Day

HCPCS-B4035-ENTERAL-FEEDING-SUPPLY-KIT-PUMP-FED-PER-DAY

HCPCS Level II B4035: Enteral Feeding Supply Kit, Pump-Fed, Per Day

HCPCS-B4036-ENTERAL-FEEDING-SUPPLY-KIT-GRAVITY-FED-DAILY

HCPCS Level II B4036: Enteral Feeding Supply Kit, Gravity-Fed, Per Day

HCPCS-B4081-NASOGASTRIC-TUBING-WITH-STYLET

HCPCS Level II B4081: Nasogastric Tubing With Stylet

HCPCS-B4082-NASOGASTRIC-TUBING-WITHOUT-STYLET

HCPCS Level II B4082: Nasogastric Tubing Without Stylet

HCPCS-B4083-LEVINE-STOMACH-TUBE-NASOGASTRIC-SUPPLY

HCPCS Level II B4083: Levine Stomach Tube

HCPCS-B4087-GASTROSTOMY-JEJUNOSTOMY-TUBE-STANDARD

HCPCS Level II B4087: Gastrostomy/Jejunostomy Feeding Tube, Standard

HCPCS-B4088-LOW-PROFILE-GASTROSTOMY-JEJUNOSTOMY-TUBE

HCPCS Level II B4088: Low-Profile Gastrostomy/Jejunostomy Tube

HCPCS-B4100-FOOD-THICKENER-ORAL-PER-OUNCE

HCPCS Level II B4100: Food Thickener, Oral, Per Ounce

HCPCS-B4102-ENTERAL-FLUID-ELECTROLYTE-REPLACEMENT-FORMULA-ADULT

HCPCS Level II B4102: Enteral Formula for Fluid and Electrolyte Replacement

Showing 1–10 of 50

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

OpenPayer

HCPCS Level II B4185: Parenteral Nutrition Solution, 10g Lipids

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OpenPayer

HCPCS Level II B4185: Parenteral Nutrition Solution, 10g Lipids

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Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Codes

References

HCPCS Level II B4185: Parenteral Nutrition Solution, 10g Lipids

Sign up for hcpcs B4185 policy alerts

HCPCS Level II B4185: Parenteral Nutrition Solution, 10g Lipids

Sign up for hcpcs B4185 policy alerts

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Codes

What does HCPCS code B4185 represent and where is it typically used?

Which modifiers are commonly associated with billing B4185?

How does billing B4185 relate to CPT procedure codes for access and infusion services?

In which clinical situations and workflow is B4185 most commonly used?

Which payers are included in the analysis and does the page provide specific coverage or reimbursement rates?

References

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Codes

What does HCPCS code B4185 represent and where is it typically used?

Which modifiers are commonly associated with billing B4185?

How does billing B4185 relate to CPT procedure codes for access and infusion services?

In which clinical situations and workflow is B4185 most commonly used?

Which payers are included in the analysis and does the page provide specific coverage or reimbursement rates?

References