Summary & Overview
CPT 88309: Level VI Surgical Pathology, Gross and Microscopic Examination
CPT code 88309 denotes a Level VI surgical pathology service comprising both gross and microscopic examination of specimens such as the tongue, tonsil (for tumor resection), testis, or spermatic cord. As a detailed anatomic pathology procedure, the code is a key component in surgical specimen evaluation that informs diagnosis, staging, and downstream clinical management nationwide. Recognition of the code’s role is important for clinical documentation, billing accuracy, and care coordination across surgical and pathology teams.
Major national payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an explanation of the clinical context for specimens commonly reported under this code, guidance on typical sites of service, and comparisons to adjacent pathology codes such as other levels of surgical pathology. The publication outlines billing considerations that affect claim processing, including typical service settings and commonly associated procedure components. It also identifies related procedures and administrative data elements where available. Data not available in the input is clearly noted where applicable.
Billing Code Overview
CPT code 88309 is a Level VI surgical pathology service involving gross and microscopic examination of specimens such as the tongue, tonsil (for tumor resection), or other sites (for example, testis or spermatic cord). This code represents a comprehensive anatomic pathology evaluation performed by a pathologist to characterize tissue removed during surgical procedures.
Service Type: Surgical Pathology Procedures (Anatomic Pathology)
Typical Site of Service: Anatomic pathology laboratory (facility billed) or Office (POS 11) when performed by a pathologist interpreting surgical specimens.
Clinical & Coding Specifications
Clinical Context
A patient with a suspected or confirmed tumor of the oral tongue or a resected lesion from the tonsil is evaluated after surgical excision. The surgical specimen is submitted to the anatomic pathology laboratory where a pathologist performs gross examination, tissue sectioning, slide preparation, and microscopic evaluation to render a definitive histopathologic diagnosis. The workflow includes specimen accessioning, fixation, gross description, selection of sections, processing and embedding, microtomy, staining, microscopic review, and preparation of a surgical pathology report documenting tumor type, margins, and other relevant features. Results are communicated to the surgical team and incorporated into staging and postoperative management planning.
Coding Specifications
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26— Professional Component: Used when billing only the pathologist’s interpretive services (reporting the diagnosis and microscopic interpretation) separate from the laboratory’s technical work. -
TC— Technical Component: Used when billing only the technical services (laboratory processing, staining, slide preparation, microtomy) without the pathologist’s interpretive report. -
59— Distinct Procedural Service: Used when the surgical pathology service is separate and distinct from another performed procedure on the same date (e.g., when multiple independent procedures require separate anatomic pathology services).