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ICD-10 Guide
DiagnosesAdenomyomatosis

Adenomyomatosis

ICD-10 Coding for Adenomyomatosis(K82.8)

PRIMARY SPECIALTYGastroenterology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Adenomyomatosis?
Essential facts and insights about Adenomyomatosis

Key Clinical Considerations:

  • Patients may present with abdominal pain or discomfort, particularly in the right upper quadrant.
  • Imaging studies, such as ultrasound or MRI, may reveal thickening of the gallbladder wall with a characteristic 'ring of fire' appearance.
  • Physical examination may show tenderness in the right upper quadrant, but may be non-specific.
  • Cholecystography or other imaging modalities may demonstrate the presence of adenomyomatosis.
  • Severity is generally not staged, but the presence of symptoms may indicate the need for further evaluation.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Medical records must document the presence of symptoms, imaging findings, and any relevant history.
  • Specific terminology such as 'adenomyomatosis of the gallbladder' must be used to ensure clarity.
  • Examples include: 'Patient presents with abdominal pain; ultrasound shows gallbladder wall thickening consistent with adenomyomatosis.'
  • Documentation must support the medical necessity for imaging and any subsequent interventions.
  • Quality measures may include documentation of symptoms and imaging results in the patient's medical record.

Coding Guidelines

Usage Guidelines & Examples

  • Use this diagnosis code when imaging confirms adenomyomatosis without acute cholecystitis.
  • Do not use this code if the patient has acute cholecystitis or other gallbladder diseases that require different coding.
  • Related codes include K80.0 (cholelithiasis with acute cholecystitis) and K81.0 (acute cholecystitis).
  • Common errors include misclassifying adenomyomatosis as cholecystitis; ensure imaging findings are accurately interpreted.
  • In complex cases, consider the patient's full clinical picture and any co-existing conditions before selecting the code.

Code Exclusions

Important Exclusions

  • Conditions explicitly excluded include acute cholecystitis and gallbladder carcinoma.
  • Alternative codes for excluded conditions include K80.0 for acute cholecystitis and C23 for gallbladder cancer.
  • Conditions are excluded due to differing pathophysiology and treatment implications.
  • Common mistakes include coding adenomyomatosis when acute symptoms suggest cholecystitis; ensure accurate imaging interpretation.
  • Related but distinct conditions include chronic cholecystitis and gallbladder polyps.

Related ICD-10 Codes

Primary Codes
K82.8
Other specified diseases of the gallbladder
K80.9
Cholelithiasis, unspecified
Ancillary Codes
R10.11
Differential Codes
K81.0
K80.20

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Gastroenterology

Specialty Applications

  • This diagnosis applies to patients with gallbladder abnormalities, particularly those with imaging findings suggestive of adenomyomatosis.
  • Patient populations may include adults, particularly those over 40, and may have risk factors such as obesity or a history of gallstones.
  • Clinical settings include outpatient gastroenterology clinics and inpatient surgical units.
  • Specialty-specific applications are relevant in gastroenterology and surgical specialties dealing with gallbladder diseases.
  • Treatment contexts may involve monitoring or surgical intervention if symptomatic.

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: 'Patient diagnosed with adenomyomatosis based on ultrasound findings of gallbladder wall thickening.'

Template 2

Template: 'Clinical presentation consistent with adenomyomatosis including right upper quadrant pain and imaging results.'

Template 3

Template: 'Diagnostic criteria for adenomyomatosis met as evidenced by ultrasound showing characteristic findings.'

Template 4

Template: 'Treatment plan initiated for adenomyomatosis with monitoring for symptom progression.'

Template 5

Template: 'Follow-up care for adenomyomatosis including regular imaging and symptom assessment.'

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 diagnosis?

Documentation must include imaging results, clinical symptoms, and any relevant patient history.

How does this differ from similar diagnoses?

Adenomyomatosis is characterized by specific imaging findings, unlike acute cholecystitis which presents with inflammation.

What are common billing considerations?

Ensure that the diagnosis is supported by imaging and that medical necessity is clearly documented.

What procedures are typically associated?

Related CPT codes may include ultrasound and cholecystectomy if indicated.

Are there any quality reporting implications?

Quality measures may include documentation of imaging findings and symptom management in the patient's record.