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ICD-10 Guide
ICD-10 CodesK51.512

K51.512

Billable

Left sided colitis with intestinal obstruction

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

Code Description

ICD-10 K51.512 is a billable code used to indicate a diagnosis of left sided colitis with intestinal obstruction.

Key Diagnostic Point:

K51.512 refers to left-sided colitis with intestinal obstruction, a condition characterized by inflammation of the colon, specifically affecting the left side, which includes the descending colon and sigmoid colon. Patients typically present with symptoms such as abdominal pain, diarrhea, rectal bleeding, and urgency. The obstruction may result from severe inflammation, strictures, or complications such as abscess formation. The anatomy involved includes the colon, rectum, and surrounding structures, which can be affected by the inflammatory process. Disease progression can lead to complications such as perforation or severe dehydration. Diagnostic considerations include colonoscopy, imaging studies like CT scans, and laboratory tests to assess inflammation and rule out other conditions. Accurate diagnosis is crucial for effective management and treatment planning, which may involve medications, dietary changes, or surgical interventions in severe cases.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires thorough evaluation of symptoms and imaging studies.
  • Treatment complexity: May involve a combination of medical and surgical management.
  • Documentation requirements: Detailed clinical notes and imaging results are necessary.
  • Coding specificity: Requires precise coding to differentiate from other types of colitis.

Audit Risk Factors

  • Common coding errors: Misclassification with non-obstructive colitis codes.
  • Documentation gaps: Incomplete clinical notes regarding obstruction severity.
  • Billing challenges: Potential denials if documentation does not clearly support the diagnosis.

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

General Surgery

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

K51.512 has significant clinical implications as it affects patient management and treatment outcomes. The prevalence of inflammatory bowel diseases, including left-sided colitis, is rising, impacting healthcare utilization patterns. Quality measures focus on timely diagnosis and effective management to prevent complications. Understanding the epidemiology of this condition is crucial for population health initiatives aimed at improving care for affected individuals.

ICD-9 vs ICD-10

K51.512 has significant clinical implications as it affects patient management and treatment outcomes. The prevalence of inflammatory bowel diseases, including left-sided colitis, is rising, impacting healthcare utilization patterns. Quality measures focus on timely diagnosis and effective management to prevent complications. Understanding the epidemiology of this condition is crucial for population health initiatives aimed at improving care for affected individuals.

Reimbursement & Billing Impact

Reimbursement considerations may vary based on the severity of the condition and the complexity of treatment. Common denials may arise from insufficient documentation or misclassification of the condition. Best practices include regular audits of clinical documentation and coding accuracy to ensure compliance with payer requirements.

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 K51.512?

K51.512 specifically covers left-sided colitis that is complicated by intestinal obstruction. This includes cases where the obstruction is due to inflammatory strictures or other complications arising from the colitis.

When should K51.512 be used instead of related codes?

K51.512 should be used when there is clear documentation of left-sided colitis accompanied by intestinal obstruction. If the obstruction is absent or if the colitis affects other regions of the colon, different codes should be selected.

What documentation supports K51.512?

Documentation should include clinical findings from physical examinations, imaging studies that confirm obstruction, colonoscopy results showing inflammation, and treatment plans that address both the colitis and the obstruction.