In simple words: A lab technician performs a special staining procedure on a tissue sample to help diagnose a medical condition.A doctor then examines the stained sample under a microscope and provides a report of their findings. This doesn't include stains for microorganisms, enzymes, or special immune-related stains.

This code represents the examination and interpretation of a special stain, excluding stains for microorganisms, enzyme constituents, or immunocytochemistry and immunohistochemistry. It includes the technical steps of staining the specimen slide with a special stain for Group II identification, interpretation of the results by a qualified provider, and a report of the findings. This code is used for each special stain performed on each surgical pathology block, cytologic specimen, or hematologic smear.

Example 1: A patient undergoes a biopsy of a skin lesion. To identify specific components within the tissue, a trichrome stain is performed on the specimen, and the results are interpreted by the pathologist., A patient has a bone marrow biopsy. An iron stain is performed to assess iron stores within the bone marrow, and the pathologist interprets the findings., A patient has a fine needle aspiration of a suspicious neck mass. A special stain is used to differentiate various cell types present in the specimen, and the results are interpreted by the pathologist.

Documentation should include the type of special stain performed, the specific specimen(s) stained, the interpretation of the stain results, and the corresponding report.