Paracentesis

CPT 49083
Approach Ultrasound Guided
Add-on / Variant CPTs
  • 76942 — Ultrasound guidance with permanent image documentation
Preoperative Diagnosis:

Ascites, [diagnostic / therapeutic], [cirrhotic / malignant / other etiology]

Postoperative Diagnosis:

Same

Procedure Performed:

Ultrasound-guided paracentesis, [diagnostic / therapeutic large-volume]

Attending Surgeon:

[Attending name], MD/DO

First Assistant:

[Nurse/tech name]

Anesthesia:

Local: [X] mL 1% lidocaine without epinephrine

Indications:

The patient is a [age]-year-old [male/female] with a history of [cirrhosis / malignancy / other] and [new-onset / worsening] ascites presenting for [diagnostic evaluation to rule out spontaneous bacterial peritonitis / therapeutic large-volume paracentesis for symptomatic relief]. The risks, benefits, and alternatives of the procedure were discussed with the patient, and informed consent was obtained.

Findings:

Ultrasound confirmed a [large / moderate] pocket of free abdominal fluid in the [left lower quadrant / right lower quadrant / suprapubic region] with a depth of [X] cm. No bowel or vascular structures were identified at the puncture site. [X] mL of [straw-colored / serosanguineous / cloudy / bloody / milky] ascitic fluid was drained without complication.

Description of Procedure:

The patient was placed supine with the head of the bed elevated slightly. Ultrasound was used to identify the optimal puncture site with the largest fluid pocket and clear of bowel, bladder, and abdominal wall vasculature (inferior epigastric vessels). The [left lower quadrant / right lower quadrant / suprapubic] region was selected, with a measured fluid depth of [X] cm. An ultrasound image was saved documenting the fluid pocket and planned puncture site.

The skin was prepped with ChloraPrep and draped in sterile fashion. The skin and subcutaneous tissue were infiltrated with [X] mL of 1% lidocaine using a Z-track technique to reduce the risk of ascitic fluid leak. A thoracentesis needle [or 15-gauge paracentesis needle / 5 Fr pigtail catheter] was advanced through the anesthetized tract under ultrasound guidance with gentle aspiration. Entry into the peritoneal cavity was confirmed by free return of ascitic fluid.

For diagnostic paracentesis: 20–30 mL of ascitic fluid was aspirated and sent for cell count with differential, total protein, albumin, LDH, Gram stain and culture (inoculated directly into blood culture bottles at the bedside), and [cytology / amylase / triglycerides / glucose] as indicated.

For therapeutic large-volume paracentesis: fluid was drained via vacuum bottles and/or gravity drainage. A total of [X] mL of ascitic fluid was removed. Serum albumin of [X] g/dL was noted; albumin infusion (6–8 g per liter of ascites drained beyond 5 liters) was [administered / ordered] per protocol.

The needle [catheter] was removed and pressure was applied. The puncture site was inspected. No ongoing fluid leak was identified.

Complications:

None

Specimens:

Ascitic fluid sent for: cell count with differential, total protein, albumin, LDH, Gram stain and culture (blood culture bottles), [cytology]

Estimated Blood Loss:

None

Drains:

None. Paracentesis needle removed at end of procedure. [X] mL ascitic fluid drained.

Disposition:

The patient tolerated the procedure well. The puncture site was dry at the end of the procedure. The patient was monitored post-procedure. Albumin infusion [was / was not] administered per large-volume paracentesis protocol.

Epic SmartPhrase Version 
PREOPERATIVE DIAGNOSIS: Ascites, diagnostic/therapeutic
POSTOPERATIVE DIAGNOSIS: Same
PROCEDURE PERFORMED: Ultrasound-guided paracentesis, ***
ATTENDING: ***, MD/DO
ASSISTANT: ***
ANESTHESIA: Local: *** mL 1% lidocaine without epinephrine

INDICATIONS: The patient is a .PTAGE-year-old .PTSEX with *** and ascites presenting for ***. Risks and benefits discussed, consent obtained.

FINDINGS: Ultrasound confirmed fluid pocket in *** with depth *** cm. No bowel or vessels at puncture site. *** mL *** fluid drained. Image saved.

PROCEDURE:
Patient supine, HOB slightly elevated. Ultrasound identified optimal site: *** with fluid depth *** cm, clear of bowel and inferior epigastric vessels. Image saved.

Skin prepped and draped in sterile fashion. *** mL 1% lidocaine infiltrated using Z-track technique. Paracentesis needle advanced under ultrasound guidance. Free ascitic fluid return confirmed. *** mL *** fluid drained via vacuum bottles/gravity. Needle removed, pressure held, site dry.

Fluid sent for: cell count, protein, albumin, LDH, Gram stain/culture (blood culture bottles), ***.
Albumin infusion: ***.

COMPLICATIONS: None
SPECIMENS: Ascitic fluid, per above
DISPOSITION: Patient tolerated procedure well, site dry, monitored in stable condition.

Signed: .ME, .MYDEGREE
.TODAY
Variants

Diagnostic — SBP Workup

30 mL of ascitic fluid was aspirated for SBP evaluation. Fluid was inoculated directly into aerobic and anaerobic blood culture bottles at the bedside (10 mL each) and an additional aliquot sent for cell count with differential. An ascitic fluid PMN count >250 cells/mm³ is diagnostic of SBP. Results were communicated to the primary team promptly.

Large-Volume Paracentesis with Albumin Infusion

[X] liters of ascitic fluid were removed. Per AASLD guidelines for large-volume paracentesis (>5 liters), albumin was administered at 6–8 g per liter of ascites removed beyond 5 liters. Total albumin infused: [X] g ([X] mL of 25% albumin). This reduces the risk of paracentesis-induced circulatory dysfunction (PICD).

Malignant Ascites

In the setting of known or suspected malignancy, ascitic fluid cytology was sent in addition to standard studies. The ascitic fluid appeared [straw-colored / serosanguineous / bloody]. Note that bloody fluid in the setting of malignancy raises concern for malignant ascites or peritoneal carcinomatosis; the primary oncology team was notified.

Charting Tips
  • Document ultrasound image confirmation of the fluid pocket, depth, and identification of the inferior epigastric vessels — required for billing CPT 76942. Image must be permanently saved in the chart.
  • For large-volume paracentesis (>5 liters), document whether albumin was administered and at what dose. Failure to administer albumin per protocol is a known medicolegal risk and contributes to hepatorenal syndrome.
  • Document cell count result if available at the time of the note — a PMN count >250 is diagnostic of SBP and requires immediate empiric antibiotic coverage. Note if results are pending and document the plan for follow-up.
Billing Tips
  • Bill 49082 for paracentesis without imaging guidance (1.21 wRVU, 0-day global). Use when the procedure is performed by clinical landmark technique without ultrasound.
  • Bill 49083 for paracentesis with imaging guidance (1.95 wRVU, 0-day global). Use when real-time ultrasound is used to guide needle placement. Document real-time imaging, a permanent image record, and that guidance was medically necessary (e.g., small effusion, obesity, prior abdominal surgery).
  • Do not bill 49082 and 49083 together. If ultrasound is used, only 49083 is billed, as the guidance is included.
  • 0-day global: no bundled postoperative period. Paracentesis can be billed separately from a same-day E/M with modifier -25 on the E/M if a significant, separately identifiable evaluation is documented.
  • For large-volume paracentesis (LVP), document volume removed, albumin replacement given, and hemodynamic response. These support medical necessity and are required for diagnostic/therapeutic distinction in payer review.