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 CodesK51.518

K51.518

Billable

Left sided colitis with other complication

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

Code Description

ICD-10 K51.518 is a billable code used to indicate a diagnosis of left sided colitis with other complication.

Key Diagnostic Point:

K51.518 refers to left-sided colitis with other complications, a form of inflammatory bowel disease (IBD) that primarily affects the descending colon and rectum. Clinically, patients may present with symptoms such as abdominal pain, diarrhea (often bloody), weight loss, and fatigue. The disease can lead to complications such as strictures, fistulas, or abscesses, which may necessitate surgical intervention. Anatomically, the left-sided colitis involves inflammation of the mucosal layer of the colon, particularly affecting the left colon. Disease progression can vary, with some patients experiencing intermittent flare-ups while others may have chronic symptoms. Diagnostic considerations include colonoscopy with biopsy, imaging studies, and laboratory tests to rule out infections or other gastrointestinal disorders. Accurate diagnosis is crucial for effective management and treatment planning, which may involve medications such as corticosteroids, immunosuppressants, or biologics, and in severe cases, surgical options may be considered.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires thorough evaluation and differentiation from other gastrointestinal conditions.
  • Treatment complexity: Management may involve multiple therapeutic approaches and monitoring.
  • Documentation requirements: Detailed clinical documentation is necessary to support the diagnosis and treatment plan.
  • Coding specificity: Requires precise coding to capture the specific complications associated with left-sided colitis.

Audit Risk Factors

  • Common coding errors: Misclassification of colitis types or failure to document complications.
  • Documentation gaps: Incomplete clinical notes that do not adequately describe the patient's condition.
  • Billing challenges: Potential for denials if documentation does not clearly support the diagnosis and treatment provided.

Specialty Focus

Medical Specialties

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

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

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Left-sided colitis significantly impacts patient quality of life and healthcare utilization, often leading to increased hospital visits and potential surgical interventions. Understanding the epidemiology of this condition is crucial, as it affects a substantial portion of the population with IBD. Quality measures focus on timely diagnosis, effective management, and monitoring of complications to improve patient outcomes and reduce healthcare costs.

ICD-9 vs ICD-10

Left-sided colitis significantly impacts patient quality of life and healthcare utilization, often leading to increased hospital visits and potential surgical interventions. Understanding the epidemiology of this condition is crucial, as it affects a substantial portion of the population with IBD. Quality measures focus on timely diagnosis, effective management, and monitoring of complications to improve patient outcomes and reduce healthcare costs.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that the documentation supports the medical necessity of the services provided. Common denials may arise from insufficient documentation or failure to link the diagnosis to the treatment rendered. Best practices include thorough clinical notes, clear coding of complications, and regular audits to ensure compliance with coding guidelines.

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 K51.518?

K51.518 encompasses left-sided colitis with complications such as strictures, fistulas, or abscesses. It is important to document the specific complications present to justify the use of this code.

When should K51.518 be used instead of related codes?

K51.518 should be used when there is clear documentation of left-sided colitis accompanied by specific complications. If no complications are present, K51.5 should be utilized instead.

What documentation supports K51.518?

Documentation should include clinical findings from examinations, results from imaging studies, colonoscopy reports, and any laboratory tests that confirm the diagnosis of left-sided colitis with complications.