Cytopathology: Sputum

CPT Code(s):

  • 88108
  • 88112
  • 88106

Additional CPT codes may apply if special studies are required.

Specimen Requirements:

Collect the specimen and place it in a sterile container if it can be delivered immediately to the lab. If immediate delivery is not available, then it is recommended to place 30 mL of the specimen in ThinPrep® or SurePath® medium or place 3 units of heparin in a sterile container and then refrigerate.

Storage/Transport Temperature: Submit specimen according to Biological Substance, Category B, shipping guidelines.

Unacceptable Conditions: Frozen, sterile container > 2 hours old without heparin

Stability (collection to initiation of testing):

  • Ambient:
    • Sterile Container: 2 hours
    • ThinPrep®: 3 weeks
    • SurePath®: 4 weeks
  • Refrigerated: Add 3 units of heparin (48 hours)


This test aids in the diagnosis of infections and neoplasia.




1 – 3 days