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v1.0.0
ICD-10 Guide
DiagnosesPositive Fobt

Positive Fobt

ICD-10 Coding for Positive Fecal Occult Blood Test(R19.5, Z12.11)

PRIMARY SPECIALTYPrimary Care
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Positive Fobt?
Essential facts and insights about Positive Fecal Occult Blood Test

Key Clinical Considerations:

  • Occult blood in stool, abdominal pain, changes in bowel habits
  • Positive fecal occult blood test (FOBT), colonoscopy findings
  • Abdominal tenderness, signs of anemia (pallor, fatigue)

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of gastrointestinal symptoms, FOBT results, follow-up plans
  • ICD-10-CM codes for positive FOBT, related symptoms, and findings
  • Example: 'Patient presents with positive FOBT; further evaluation with colonoscopy scheduled.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for screening vs. diagnostic codes.
  • Common errors include misclassifying screening as diagnostic.

Code Exclusions

Important Exclusions

  • Conditions like hemorrhoids or anal fissures causing false positives
  • Alternative codes for gastrointestinal bleeding or malignancy

Related ICD-10 Codes

Primary Codes
R19.5
Difficulties in defecation
Z12.11
Encounter for screening for malignant neoplasm of colon
Ancillary Codes
Z12.11
R19.5
as secondary if test is positive.
Differential Codes
K92.1
K92.1
for black, tarry stools indicating upper GI bleeding.
D50.9
D50.9
when anemia is confirmed as the primary condition.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Primary Care

Specialty Applications

  • Adults over 50, patients with family history of colorectal cancer
  • Primary care settings, gastroenterology referrals

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document the positive FOBT result, any symptoms, and follow-up actions.

Billing considerations?

Ensure proper coding for screening and diagnostic procedures related to positive FOBT.