Summary & Overview
CPT 88311: Decalcification of Specimen for Histologic Examination
CPT code 88311 identifies a laboratory decalcification procedure used to dissolve calcium from tissue specimens so they can be sectioned and examined microscopically. This preparatory step is essential for accurate histologic evaluation when calcified material would otherwise prevent adequate processing. Nationally, decalcification procedures like 88311 are important to pathology workflows for bone, calcified soft tissue, and certain surgical specimens.
Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for 88311, typical sites of service, and the service type. The publication summarizes common billing considerations and modifiers associated with laboratory services and provides benchmarking and policy-relevant notes where available. Data not provided in the input are noted as unavailable.
This report is intended to inform billing professionals, laboratory managers, and policy analysts about the role and classification of the decalcification service represented by CPT code 88311, along with payer coverage context and areas to review for coding and documentation alignment.
Billing Code Overview
CPT code 88311 describes a laboratory procedure in which a specimen undergoes decalcification, a chemical process that dissolves calcium deposits to facilitate microscopic examination. This service is typically performed by a pathology or clinical laboratory analyst as part of tissue preparation when calcified material would otherwise impede sectioning or staining.
Service type: Laboratory — specimen preparation (decalcification)
Typical site of service: Hospital laboratory or independent pathology/clinical laboratory
Clinical & Coding Specifications
Clinical Context
A 62-year-old female presents after surgical excision of a portion of her mandible for a chronic osteomyelitis lesion. The surgical specimen includes bone fragments that require histologic evaluation for infection and tumor exclusion. The pathology laboratory receives the bony specimen and documents requests for routine H&E staining and possible special stains. Because bone is heavily mineralized, the histology technician performs a decalcification procedure to dissolve calcium salts and soften the specimen, enabling proper sectioning, embedding, and microscopic evaluation. The typical workflow: accessioning and labeling of the specimen, gross description by the pathologist, fixation in formalin, decalcification using acid or chelating agents, processing, embedding, microtomy, staining, and pathologist interpretation. This service is performed in the anatomic pathology laboratory setting associated with hospital-based or independent outpatient surgical pathology services. Common clinical scenarios include evaluation of bone removed for infection (osteomyelitis), benign or malignant bone tumors, dental/mandibular resections, and bone biopsy specimens for metabolic or inflammatory bone disease.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation portion of a service provided to a specimen processed by another entity. |