ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesK51.0

K51.0

Non-billable

Ulcerative (chronic) pancolitis

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 K51.0 is a used to indicate a diagnosis of ulcerative (chronic) pancolitis.

Key Diagnostic Point:

Ulcerative (chronic) pancolitis is a form of inflammatory bowel disease (IBD) characterized by chronic inflammation and ulceration of the colonic mucosa, affecting the entire colon. Clinically, patients may present with symptoms such as abdominal pain, diarrhea (often bloody), urgency, and weight loss. The disease can lead to complications such as toxic megacolon, perforation, and increased risk of colorectal cancer. The anatomy involved includes the entire colon, which is divided into the cecum, ascending colon, transverse colon, descending colon, and sigmoid colon. Disease progression can vary, with some patients experiencing intermittent flares and periods of remission. Diagnostic considerations include colonoscopy with biopsy, which helps confirm the diagnosis by revealing characteristic mucosal changes. Laboratory tests may also be performed to assess inflammation and rule out other conditions. Early diagnosis and management are crucial to prevent complications and improve the quality of life for affected individuals.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires thorough evaluation and differentiation from other gastrointestinal disorders.
  • Treatment complexity: Involves a multidisciplinary approach including medication management, dietary modifications, and potential surgical interventions.
  • Documentation requirements: Requires detailed clinical documentation to support the diagnosis and treatment plan.
  • Coding specificity: Specific to the extent of colonic involvement and severity of the disease.

Audit Risk Factors

  • Common coding errors: Misclassification of the extent of disease involvement.
  • Documentation gaps: Incomplete clinical notes that do not fully capture the severity or extent of the condition.
  • Billing challenges: Potential denials due to lack of supporting documentation for the diagnosis.

Specialty Focus

Medical Specialties

Primary medical specialty: Gastroenterology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Secondary specialty: Internal Medicine

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Ulcerative pancolitis significantly impacts patient quality of life and healthcare utilization. It is associated with increased hospital admissions and healthcare costs due to complications and the need for ongoing management. Epidemiologically, the prevalence of ulcerative colitis varies by region, with higher rates observed in developed countries. Quality measures focus on effective management strategies to reduce flare-ups and improve patient outcomes, emphasizing the importance of early diagnosis and comprehensive care.

ICD-9 vs ICD-10

Ulcerative pancolitis significantly impacts patient quality of life and healthcare utilization. It is associated with increased hospital admissions and healthcare costs due to complications and the need for ongoing management. Epidemiologically, the prevalence of ulcerative colitis varies by region, with higher rates observed in developed countries. Quality measures focus on effective management strategies to reduce flare-ups and improve patient outcomes, emphasizing the importance of early diagnosis and comprehensive care.

Reimbursement & Billing Impact

Reimbursement considerations include the need for thorough clinical notes that detail the patient's symptoms, diagnostic procedures performed, and treatment plans. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity for procedures. It is essential to ensure that all relevant information is included in the medical record to support the coding and billing process. Best practices include regular training on coding updates and maintaining clear communication between healthcare providers and billing departments.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by K51.0?

K51.0 specifically covers ulcerative pancolitis, which is characterized by inflammation and ulceration of the entire colon. It is important to differentiate it from other forms of ulcerative colitis that may affect only part of the colon.

When should K51.0 be used instead of related codes?

K51.0 should be used when the clinical documentation indicates that the entire colon is affected by ulcerative colitis. If only a portion of the colon is involved, related codes such as K51.1 or K51.9 should be considered.

What documentation supports K51.0?

Documentation should include a detailed clinical history, results from colonoscopy and biopsy confirming pancolitis, and any relevant laboratory tests indicating inflammation. Treatment plans and follow-up notes should also be included.