ICD-10 Codes for Cholecystectomy: Clinical Coding & Documentation Guide for Surgeons

ICD-10 Codes for Cholecystectomy Clinical Coding & Documentation Guide for Surgeons

Accurate documentation and ICD-10 coding of cholecystectomy procedures are vital for clinical outcomes reporting, payer compliance, and surgical audit transparency.

For general surgeons, hepatobiliary specialists, and gastroenterologists, understanding the coding logic behind ICD-10-CM and ICD-10-PCS ensures precise alignment between operative documentation and hospital data systems.

This guide consolidates CMS updates, ICD-10-PCS code definitions, and clinical documentation pearls for open, laparoscopic, and robotic cholecystectomy, including postoperative and aftercare coding.

ICD-10-CM Diagnosis Codes for Cholecystectomy

In ICD-10-CM, diagnosis codes describe the reason for the procedure, status post conditions, or aftercare encounters.

Underlying Gallbladder Diseases (K80-series)

Condition

ICD-10-CM Code

Description

Calculus of the gallbladder without cholecystitis

K80.20

Gallstones in the gallbladder, no inflammation

Calculus of the gallbladder with acute cholecystitis

K80.00

Gallstones with acute inflammation

Chronic cholecystitis without calculus

K81.1

Non-calculous chronic inflammation

Other disorders of the gallbladder

K82.8

Polyps, cysts, cholesterolosis

Ensure documentation differentiates acute vs chronic cholecystitis, and presence/absence of stones, as this directly affects K80 vs K81 code selection.

Aftercare Following Cholecystectomy

Code

Description

Use

Z48.815

Aftercare following surgery on the digestive system

Routine post-op visits (wound care, drain review)

History / Status Post Cholecystectomy

Code

Description

Clinical Context

Z90.49

Acquired absence of the gallbladder

Past cholecystectomy; anatomical absence

Z90.5 (legacy)

Acquired absence of the gallbladder

Older system variant still accepted by some EMRs

Post-Cholecystectomy Complications

Code

Condition

Comment

K91.5

Post-cholecystectomy syndrome

Biliary dyspepsia, retained CBD stone, sphincter of Oddi dysfunction

Avoid miscoding chronic pain as K91.5 unless causally linked to gallbladder removal.

ICD-10-PCS Procedure Codes for Cholecystectomy

ICD-10-PCS employs seven-character alphanumeric codes detailing surgical section, body system, root operation, body part, approach, device, and qualifier.

Some key codes

  • 0FB44ZZ — Excision of Gallbladder, Percutaneous Endoscopic Approach.
  • 0FT44ZZ — Resection of Gallbladder, Percutaneous Endoscopic Approach.

Open Cholecystectomy

Code

Description

0FT40ZZ

Resection of Gallbladder, Open Approach

0FB40ZZ

Excision of Gallbladder, Open Approach

Robotic Cholecystectomy ICD-10

Code

Description

8E0W4CZ

Robotic-Assisted Procedure of the Trunk Region, Percutaneous Endoscopic Approach

8E0W0CZ

Robotic-Assisted Procedure of the Trunk Region, Open Approach

This dual-code combination accurately reflects a da Vinci-assisted LC and meets CMS 2025 guidance.

Breakdown of a sample code (0FB44ZZ)

From one source:

  • 1st character “0” = Medical and Surgical section
  • 2nd character “F” = Hepatobiliary System and Pancreas
  • 3rd “B” = Excision (removal of a portion OR complete body part)
  • 4th “4” = Gallbladder (body part)
  • 5th “4” = Approach: Percutaneous Endoscopic
  • 6th “Z” = No Device
  • 7th “Z” = No Qualifier

Clinical Documentation Requirements

Surgeons should ensure that operative notes include:

  • Approach: open, laparoscopic, or robotic
  • Extent: complete vs subtotal cholecystectomy
  • Intraoperative findings: empyema, perforation, adhesions
  • Intraoperative procedures: cholangiogram, CBD exploration, stent placement
  • Conversion to open: include rationale
  • Complications: bleeding, bile leak, injury, retained stones
  • Aftercare plan: drains, antibiotics, follow-up interval.

Status Post & Aftercare Coding Summary

Scenario

Code

Explanation

Post-surgical follow-up

Z48.815

Routine checkups after cholecystectomy

History of cholecystectomy

Z90.49

Past removal, no active disease

Post-surgery complications

K91.5

Symptomatic biliary disturbance

Common Coding & Documentation Pitfalls

  • Ambiguous operative notes — “Gallbladder removed” without specifying the approach.
  • Misclassification — Excision (partial) vs Resection (complete).
  • Missing robotic assistance code — omitting 8E0W4CZ.
  • Incorrect use of Z-codes — using aftercare or history codes as primary diagnosis.

Failure to update post-conversion status — not documenting “converted from laparoscopic to open.”

Quick Reference Table: Cholecystectomy ICD-10 Codes

Category

Code(s)

Description

Diagnosis (CM)

K80.20 · K81.1 · K91.5

Cholelithiasis · Cholecystitis · Post-cholecystectomy syndrome

Aftercare

Z48.815

Post-surgical aftercare

History/Absence

Z90.49

Acquired absence of the gallbladder

Laparoscopic (PCS)

0FT44ZZ · 0FB44ZZ

Laparoscopic cholecystectomy

Open (PCS)

0FT40ZZ · 0FB40ZZ

Open cholecystectomy

Robotic (PCS)

8E0W4CZ · 8E0W0CZ

Robotic-assisted procedure codes

Robotic Cholecystectomy – Clinical Perspective

Robotic cholecystectomy offers improved ergonomics and precision for difficult cases (e.g., dense adhesions, obesity).

From a documentation standpoint, include robotic console utilization and patient-side docking in the operative note.

ICD-10-PCS recognizes the robotic assistance under code 8E0W4CZ, in conjunction with 0FT44ZZ, to fully describe the technique.

Reference: CMS ICD-10-PCS 2025 Official Guidelines, Section B3.1b.

Integration with Quality & Reimbursement Metrics

Proper ICD-10 coding supports:

  • MS-DRG assignment (e.g., 411 – Cholecystectomy without CDE; 410 – with CDE)
  • Risk-adjusted outcome reporting
  • Surgical site infection surveillance (SSI)
  • National Surgical Quality Improvement Program (NSQIP) data integrity

Conclusion

For specialized clinicians, ICD-10 coding is not just administrative; it’s an extension of surgical documentation quality.

By clearly defining approach, extent, and postoperative course, surgeons enable coders to apply the correct ICD-10-PCS and ICD-10-CM codes, ensuring data accuracy, appropriate DRG assignment, and regulatory compliance.

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