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Official Description

Porphyrins, feces; qualitative

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 84127 refers to a qualitative test performed on feces to detect the presence of porphyrins. Porphyrins are organic compounds that play a crucial role in the formation of heme, an essential component of hemoglobin, which is responsible for transporting oxygen in the blood. This test is significant as elevated levels of porphyrins in feces can indicate various medical conditions, including lead poisoning, liver disease, or porphyria. Porphyria is an inherited metabolic disorder characterized by a deficiency of enzymes involved in the heme synthesis pathway, leading to the accumulation of porphyrins in the body. To confirm a diagnosis of porphyria, healthcare providers often require a comprehensive assessment that includes the determination of porphyrin levels in urine, feces, and blood. The test involves obtaining a random stool sample, which is then analyzed using quantitative high-performance liquid chromatography (HPLC). Additionally, the HemoQuant test may be reported in conjunction with CPT® Code 84126, where the stool sample is evaluated using fluorescence quantitation to provide further insights into porphyrin levels.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The qualitative test for porphyrins in feces, represented by CPT® Code 84127, is indicated for the following conditions:

  • Lead Poisoning Elevated porphyrin levels may suggest exposure to lead, which can have serious health implications.
  • Liver Disease The presence of porphyrins can indicate liver dysfunction, as the liver plays a critical role in heme metabolism.
  • Porphyria This inherited metabolic disorder is characterized by enzyme deficiencies in the heme synthesis pathway, leading to abnormal porphyrin accumulation.

2. Procedure

The procedure for testing porphyrins in feces involves several key steps to ensure accurate results:

  • Sample Collection A random stool sample is collected from the patient. It is essential that the sample is obtained in a manner that prevents contamination and preserves the integrity of the porphyrins for accurate testing.
  • Sample Preparation The collected stool sample is prepared for analysis. This may involve homogenization or other methods to ensure that the porphyrins are evenly distributed within the sample.
  • Testing Method The prepared stool sample is analyzed using quantitative high-performance liquid chromatography (HPLC). This sophisticated technique allows for the precise measurement of porphyrin levels in the sample.
  • Reporting Results The results of the test are compiled and reported, indicating the presence or absence of porphyrins in the feces. If elevated levels are detected, further diagnostic evaluation may be warranted.

3. Post-Procedure

After the porphyrin fecal test is completed, the patient may not require any specific post-procedure care. However, it is important for healthcare providers to discuss the results with the patient, especially if elevated porphyrin levels are detected. Depending on the findings, further diagnostic testing may be recommended to confirm conditions such as lead poisoning, liver disease, or porphyria. Patients should be informed about the significance of the results and any necessary follow-up actions or treatments that may be required based on the outcomes of the test.

Short Descr ASSAY OF FECES PORPHYRINS
Medium Descr PORPHYRINS FECES QUALITATIVE
Long Descr Porphyrins, feces; qualitative
Status Code Statutory Exclusion (from MPFS, may be paid under other methodologies)
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 9 - Not Applicable
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 9 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Items and Services Packaged into APC Rates
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T1H - Lab tests - other (non-Medicare fee schedule)
MUE Not applicable/unspecified.
CCS Clinical Classification 233 - Laboratory - Chemistry and Hematology
Date
Action
Notes
2015-01-01 Deleted Deleted
1993-01-01 Added First appearance in code book in 1993.
Code
Description
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