CurrentBlue KCPolicy POL-PP-279

Fecal Calprotectin Testing in Adults

Coverage and reimbursement criteria for fecal calprotectin testing in individuals aged 18 years and older, for Blue KC lines of business affected. Governs when testing is reimbursable for differential diagnosis and monitoring of inflammatory bowel disease.

Policy Summary

PayerBlue KC

PolicyFecal Calprotectin Testing in Adults

Policy CodePolicy POL-PP-279

Change TypeNo material changes

Effective DateOct 1, 2025

Next Review DateOct 1, 2026

Key ActionVerify member benefits and any prior authorization requirements with Blue KC before ordering fecal calprotectin testing.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

18+applies to age

83993covered CPT

Activestatus

POL-PP-279policy

Coverage Criteria

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Differential diagnosis: Fecal calprotectin testing for the differential diagnosis between non-inflammatory gastrointestinal disease (e.g., IBS) and inflammatory gastrointestinal disease (e.g., IBD)

Applies to individuals 18 years of age or older

Monitoring/response: Fecal calprotectin testing to assess for response to therapy, for detection of relapse, or to monitor gastrointestinal conditions such as inflammatory bowel disease (IBD)

Applies to individuals 18 years of age or older

Covered Indications

Differential diagnosis between non-inflammatory GI disease (e.g., IBS) and inflammatory GI disease (e.g., IBD).

Applies to adults (18 years of age or older).

Adult patients: Patient is 18 years of age or older>= 18 years

Criteria do not apply to individuals less than 18 years of age

Assessment of response to therapy, detection of relapse, or monitoring of IBD.

Applies to adults (18 years of age or older).

Monitoring/assessment: Fecal calprotectin testing for assessment of response to therapy, detection of relapse, or monitoring of inflammatory bowel disease (IBD)

Applies to individuals 18 years of age or older

Provider Actions

Prior Authorization

Verify member benefits/prior authorization

Verify member benefits and prior authorization requirements before ordering fecal calprotectin testing. Coverage depends on the member's eligibility, benefit limits, and the date of service.

Check member-specific benefits and any prior authorization requirements with Blue KC prior to testing.
Confirm the date of service and member eligibility align with covered indications.

Note

Policy application reminder

Coverage is determined by application of the policy criteria and the member's benefits at time of request.

Ensure the indication for testing matches policy-covered reasons (differential diagnosis between non-inflammatory and inflammatory GI disease; assessment of response to therapy, relapse, or monitoring of IBD).
Tests ordered for individuals under 18 years of age are not covered under this policy.

Documentation Required

Documentation for medical necessity

Document clinical rationale in the medical record to support medical necessity for fecal calprotectin testing.

Include relevant clinical signs, symptoms, and prior diagnostic testing results that justify use of fecal calprotectin.
Document whether the test is being used for differential diagnosis (e.g., IBS vs IBD), to assess response to therapy, to detect relapse, or for monitoring IBD.
Retain documentation of the date of service and member eligibility at time of testing.

Denial Risk

Denial risk for non‑covered indications

Fecal calprotectin testing for indications not specified in this policy may be denied.

Tests ordered for indications other than differential diagnosis between non-inflammatory and inflammatory GI disease, assessment of response to therapy/relapse, or monitoring IBD may not be reimbursed.
Testing for individuals under 18 years of age does not meet coverage criteria under this policy.

Ordering Requirements

Note

Ordering requirements — verify benefits and prior authorization

Providers should verify member benefits and any prior authorization requirements prior to ordering; coverage is dependent on member eligibility and benefit limits at the time of the request.

Confirm patient meets age criteria (18+).
Confirm the requested CPT code 83993 corresponds to a reimbursable indication per policy.

Background

Background: Calprotectin is a neutrophil cytosolic protein that appears in feces when there is active intestinal inflammation. Fecal calprotectin testing is used to distinguish inflammatory bowel disease (IBD) from non-inflammatory conditions such as irritable bowel syndrome (IBS), and to assess response to therapy or detect relapse in IBD.

Definitions

Calprotectin — definition

Protein typeSmall calcium-binding protein concentrated in the cytosol of neutrophils (also present in monocytes and macrophages)

PathophysiologyActive intestinal inflammation and mucosal disturbance allow neutrophils containing calprotectin to enter the lumen and be excreted in feces

Clinical useFecal calprotectin detection is used to distinguish inflammatory bowel disease (IBD) from irritable bowel syndrome (IBS) and other non-inflammatory causes of gastrointestinal symptoms

Source evidenceDescribed in Fagerhol et al. (1980) and Hsu et al. (2009); clinical application summarized by Walsham & Sherwood (2016)

Policy Summary

PayerBlue KC

PolicyFecal Calprotectin Testing in Adults

Policy CodePolicy POL-PP-279

Change TypeNo material changes

Effective DateOct 1, 2025

Next Review DateOct 1, 2026

Key ActionVerify member benefits and any prior authorization requirements with Blue KC before ordering fecal calprotectin testing.

SourceLink

On This Page

OpenPayer

Fecal Calprotectin Testing in Adults

Coverage Criteria

Covered Indications

Coding

Provider Actions

Ordering Requirements

Not Covered

Background

Definitions