ICD-10 Guide

Absence Of Gallbladder

ICD-10 Coding for Absence of Gallbladder(Z90.5, Q44.0)

PRIMARY SPECIALTYRadiology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Absence Of Gallbladder?

Absence of gallbladder, coded as Z90.5 or Q44.0, refers to the congenital or acquired absence of the gallbladder, which may occur due to surgical removal (cholecystectomy) or developmental anomalies. Key clinical points include: 1) Patients may experience changes in digestion, particularly in fat absorption. 2) The absence can be asymptomatic or lead to complications such as bile duct stones. 3) Imaging studies, particularly ultrasound and MRI, are essential for diagnosis. Typical use cases for this diagnosis code include patients with a history of gallbladder surgery or congenital absence diagnosed during imaging for unrelated abdominal issues. Etiologically, the condition may arise from surgical intervention or genetic factors affecting gallbladder development. Clinically, patients may present with symptoms of dyspepsia or biliary colic, although many remain asymptomatic. Understanding the implications of gallbladder absence is crucial for managing dietary recommendations and monitoring for potential complications.

Key Clinical Considerations:

Diagnosis is confirmed through imaging studies showing absence of the gallbladder.
Signs may include abdominal pain, bloating, or changes in bowel habits.
Resolution criteria involve the absence of symptoms and stable imaging findings post-surgery.
Imaging findings include the absence of gallbladder on ultrasound or CT scan.

Clinical Information

Clinical Criteria & Documentation Requirements

Documentation must include the reason for the absence, whether congenital or surgical.
Compliant documentation: 'Patient has a history of cholecystectomy due to gallstones.' Non-compliant: 'Patient has no gallbladder.'
Template phrases: 'Absence of gallbladder confirmed via imaging.'
Medical necessity must be established, especially if the absence is incidental to another diagnosis.

Coding Guidelines

Usage Guidelines & Examples

Use Z90.5 for patients with a documented history of gallbladder removal; for congenital absence, use Q44.0.
Do not use this code for patients with gallbladder disease who still have their gallbladder.
Correct usage: 'Patient with a history of cholecystectomy, coded Z90.5.' Incorrect: 'Patient with gallbladder disease, coded Z90.5.'
Common errors include misclassifying patients with gallbladder disease as having an absent gallbladder.

Code Exclusions

Important Exclusions

Excluded conditions include gallbladder disease, which is coded separately.
Alternative codes for gallbladder disease include K80-K83.
Common exclusion errors involve coding absence when gallbladder disease is present.
Certain conditions are excluded to ensure accurate representation of the patient's health status.

Specialty Focus

Primary Specialty

Radiology

Specialty Applications

Applies to patients post-cholecystectomy or with congenital anomalies.
Appropriate in outpatient settings for follow-up visits.
Inpatient coding may apply if complications arise.
Specialty considerations include gastroenterology and surgery.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

Comprehensive clinical documentation
Accurate code selection based on clinical criteria
Proper exclusion considerations
Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Absence of gallbladder diagnosed based on imaging findings.'

Template 2

Template: 'Patient presents with dyspepsia consistent with absence of gallbladder.'

Template 3

Template: 'Diagnostic criteria met: absence of gallbladder on ultrasound.'

Template 4

Template: 'Treatment plan includes dietary modifications for absence of gallbladder.'

Billing Information

Billing Considerations

Ensure proper documentation for billing
Verify code specificity requirements
Check for any additional codes needed
Review payer-specific guidelines

Common Issues

Insufficient clinical documentation
Incorrect code selection
Missing supporting diagnoses
Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this code?

Detailed documentation of the absence, including surgical history or congenital diagnosis.

When should this code be used vs similar codes?

Use Z90.5 for post-surgical absence; use Q44.0 for congenital cases.

What are common billing issues with this code?

Issues may arise from incorrect coding of gallbladder disease instead of absence.

What procedures are commonly associated?

CPT codes for cholecystectomy and follow-up imaging may be relevant.

What is Absence Of Gallbladder?

Key Clinical Considerations:

Diagnosis is confirmed through imaging studies showing absence of the gallbladder.
Signs may include abdominal pain, bloating, or changes in bowel habits.
Resolution criteria involve the absence of symptoms and stable imaging findings post-surgery.
Imaging findings include the absence of gallbladder on ultrasound or CT scan.

Absence Of Gallbladder

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Template 1

Template 2

Template 3

Template 4

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What documentation is required for this code?

When should this code be used vs similar codes?

What are common billing issues with this code?

What procedures are commonly associated?

Absence Of Gallbladder

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Template 1

Template 2

Template 3

Template 4

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What documentation is required for this code?

When should this code be used vs similar codes?

What are common billing issues with this code?

What procedures are commonly associated?