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ICD-10 Guide
ICD-10 CodesK51.312

K51.312

Billable

Ulcerative (chronic) rectosigmoiditis with intestinal obstruction

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

Code Description

ICD-10 K51.312 is a billable code used to indicate a diagnosis of ulcerative (chronic) rectosigmoiditis with intestinal obstruction.

Key Diagnostic Point:

K51.312 refers to ulcerative (chronic) rectosigmoiditis with intestinal obstruction, a condition characterized by inflammation and ulceration of the rectum and sigmoid colon. Clinically, patients may present with symptoms such as abdominal pain, rectal bleeding, diarrhea, and tenesmus. The anatomy involved includes the rectum and sigmoid colon, which are critical components of the lower gastrointestinal tract. Disease progression can lead to severe complications, including strictures and obstruction, which may require surgical intervention. Diagnostic considerations include colonoscopy, imaging studies, and histopathological examination to confirm the diagnosis and assess the extent of the disease. The presence of intestinal obstruction necessitates prompt evaluation and management to prevent further complications such as perforation or sepsis.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Diagnostic complexity: Requires comprehensive evaluation including imaging and endoscopy.
  • Treatment complexity: May involve medical management, dietary modifications, and possibly surgical intervention.
  • Documentation requirements: Detailed clinical notes are necessary to support the diagnosis and treatment plan.
  • Coding specificity: Requires precise coding to differentiate from other forms of ulcerative colitis.

Audit Risk Factors

  • Common coding errors: Misclassification of the severity or type of ulcerative colitis.
  • Documentation gaps: Incomplete clinical notes that do not adequately describe the condition or treatment.
  • 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

Colorectal 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

K51.312 has significant clinical implications as it affects patient quality of life and may lead to increased healthcare utilization due to complications such as hospitalization for obstruction or surgery. The prevalence of ulcerative colitis and its complications highlights the importance of effective management strategies. Understanding the epidemiology of this condition can aid in population health initiatives aimed at improving outcomes and reducing healthcare costs associated with severe gastrointestinal disorders.

ICD-9 vs ICD-10

K51.312 has significant clinical implications as it affects patient quality of life and may lead to increased healthcare utilization due to complications such as hospitalization for obstruction or surgery. The prevalence of ulcerative colitis and its complications highlights the importance of effective management strategies. Understanding the epidemiology of this condition can aid in population health initiatives aimed at improving outcomes and reducing healthcare costs associated with severe gastrointestinal disorders.

Reimbursement & Billing Impact

Reimbursement considerations include the need for detailed clinical notes that outline the patient's symptoms, diagnostic tests performed, and treatment plans. Common denials may arise from insufficient documentation or incorrect coding, so it is crucial to ensure that all aspects of the patient's condition are thoroughly documented. Best practices include regular audits of coding accuracy and ensuring that all relevant clinical information is included in the medical record.

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 K51.312?

K51.312 covers chronic ulcerative rectosigmoiditis with intestinal obstruction, which includes symptoms of severe inflammation, ulceration, and complications such as strictures leading to obstruction. It is important to differentiate this from other forms of ulcerative colitis and inflammatory bowel diseases.

When should K51.312 be used instead of related codes?

K51.312 should be used when there is a confirmed diagnosis of chronic ulcerative rectosigmoiditis accompanied by intestinal obstruction. If the obstruction is absent, K51.311 should be utilized instead. Accurate documentation of symptoms and diagnostic findings is essential for appropriate code selection.

What documentation supports K51.312?

Documentation for K51.312 should include clinical notes detailing the patient's symptoms, diagnostic imaging results, colonoscopy findings, and any treatment plans. Pathology reports confirming ulcerative changes and evidence of obstruction are also critical for substantiating the diagnosis.