What is the ICD-10 code for a positive Cologuard test?

The ICD-10 code for a positive Cologuard test is R19.5, which indicates abnormal fecal findings. For Medicare, it should be used with Z12.11 to maintain screening intent.

How do you code a colonoscopy after a positive Cologuard test?

For a colonoscopy following a positive Cologuard test, use Z12.11 as the primary code and R19.5 as secondary. For Medicare, append the KX modifier to G0121.

ICD-10 Coding for Cologuard® Stool DNA Testing(Z12.11, C18.9, K92.1)

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Learn about ICD-10 coding for Cologuard® stool DNA testing, including primary and secondary codes, documentation requirements, and billing considerations.

Also known as:

Stool DNA TestFIT-DNA Test

Related ICD-10 Code Ranges

Complete code families applicable to Cologuard® Stool DNA Testing

Z00-Z99Primary Range

Factors influencing health status and contact with health services

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
Z12.11	Encounter for screening for malignant neoplasm of colon	Use for asymptomatic patients undergoing screening colonoscopy.	Patient is asymptomatic Documentation states 'average-risk screening' No personal/family history of CRC
R19.5	Other fecal abnormalities	Use when Cologuard® test is positive and patient is asymptomatic.	Cologuard® report showing 'positive for hemoglobin/DNA markers' No concurrent diarrhea/menstruation
C18.9	Malignant neoplasm of colon, unspecified	Use when colorectal cancer is confirmed post-colonoscopy.	Pathology confirming adenocarcinoma Localization (e.g. ascending colon)

Primary ICD-10-CM Codes

Encounter for screening for malignant neoplasm of colon

Z12.11Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Encounter for screening for malignant neoplasm of rectumZ12.12

Use when screening is specifically for rectal cancer.

MelenaK92.1

Use when patient presents with symptoms like melena.

Malignant neoplasm of rectumC20

Use when cancer is localized to the rectum.

Documentation & Coding Risks

Avoid these common issues when documenting Cologuard® Stool DNA Testing.

Vague documentation of stool test results

Impact

Clinical: May lead to inappropriate follow-up procedures., Regulatory: Non-compliance with documentation standards., Financial: Potential claim denials or audits.

Mitigation

Specify test type and result in documentation, Use standardized phrases like 'positive Cologuard® test'

Using Z12.11 for symptomatic patients

Impact

Reimbursement: May result in claim denials., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data on screening vs. diagnostic procedures.

Mitigation

Use symptom-specific codes like K92.1 for melena.

Omitting KX modifier for Medicare

Impact

Reimbursement: Potential denial of Medicare claims., Compliance: Non-compliance with CMS guidelines., Data Quality: Inaccurate reporting of screening procedures.

Mitigation

Append KX to G0121/G0105 for compliance.

Screening vs. Diagnostic Coding

Impact

Incorrectly coding diagnostic procedures as screenings.

Mitigation

Ensure documentation clearly states screening intent and patient symptom status.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with Z12.11.

Primary Code

Z12.11

Encounter for screening for malignant neoplasm of colon

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ICD-10 codes6

Coding risks4

FAQs2

ICD-10 Coding for Cologuard® Stool DNA Testing(Z12.11, C18.9, K92.1)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for a positive Cologuard test?

How do you code a colonoscopy after a positive Cologuard test?

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