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ICD-10 Guide
ICD-10 CodesK51.912

K51.912

Billable

Ulcerative colitis, unspecified with intestinal obstruction

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

Code Description

ICD-10 K51.912 is a billable code used to indicate a diagnosis of ulcerative colitis, unspecified with intestinal obstruction.

Key Diagnostic Point:

K51.912 refers to ulcerative colitis, unspecified, with intestinal obstruction. Ulcerative colitis is a chronic inflammatory bowel disease characterized by inflammation and ulceration of the colonic mucosa. The condition primarily affects the rectum and colon, leading to symptoms such as abdominal pain, diarrhea (often bloody), and urgency to defecate. In cases where intestinal obstruction occurs, the inflammation may lead to strictures or narrowing of the bowel, resulting in a blockage that can cause severe abdominal distension, vomiting, and constipation. Disease progression can vary, with periods of exacerbation and remission. Diagnostic considerations include a thorough patient history, physical examination, and confirmatory tests such as colonoscopy with biopsy, imaging studies, and laboratory tests to rule out other gastrointestinal disorders. The unspecified nature of this code indicates that the specific type or extent of ulcerative colitis has not been documented, which may complicate treatment and management strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires comprehensive evaluation and differential diagnosis.
  • Treatment complexity: Management may involve medication, dietary changes, and possibly surgery.
  • Documentation requirements: Detailed clinical documentation is necessary to support the diagnosis and treatment plan.
  • Coding specificity: The unspecified nature of the code may lead to challenges in accurately capturing the patient's condition.

Audit Risk Factors

  • Common coding errors: Misclassification of ulcerative colitis severity or type.
  • Documentation gaps: Incomplete clinical notes that do not specify the nature of the obstruction.
  • Billing challenges: Potential denials due to lack of specificity in documentation or coding errors.

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

Ulcerative colitis significantly impacts population health, contributing to increased healthcare utilization due to frequent hospitalizations and outpatient visits. The presence of intestinal obstruction complicates management and can lead to higher morbidity rates. Quality measures focus on timely diagnosis and effective management strategies to improve patient outcomes. Epidemiologically, ulcerative colitis is more prevalent in certain demographics, necessitating targeted public health interventions to address the needs of affected populations.

ICD-9 vs ICD-10

Ulcerative colitis significantly impacts population health, contributing to increased healthcare utilization due to frequent hospitalizations and outpatient visits. The presence of intestinal obstruction complicates management and can lead to higher morbidity rates. Quality measures focus on timely diagnosis and effective management strategies to improve patient outcomes. Epidemiologically, ulcerative colitis is more prevalent in certain demographics, necessitating targeted public health interventions to address the needs of affected populations.

Reimbursement & Billing Impact

reimbursement.

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 K51.912?

K51.912 covers cases of ulcerative colitis that are unspecified in terms of severity or extent, accompanied by intestinal obstruction. This may include acute exacerbations leading to strictures or chronic cases where obstruction is a complication.

When should K51.912 be used instead of related codes?

K51.912 should be used when the patient's ulcerative colitis is not further specified and is associated with intestinal obstruction. If the type or extent of ulcerative colitis is known, more specific codes should be selected.

What documentation supports K51.912?

Documentation should include a clear diagnosis of ulcerative colitis, details of the intestinal obstruction, clinical symptoms, results from diagnostic tests (e.g., colonoscopy), and treatment plans. Comprehensive notes are essential to justify the use of this code.