CPT 88387Laboratory

Macroscopic xm dsj&prep tiss

CPT 88387 covers the macroscopic (visible to the naked eye) examination and preparation of tissue that has been disarticulated or separated at a joint. This is a laboratory service where a pathologist or technician examines tissue specimens to prepare them for further analysis or diagnosis.

Showing rates for

National Average

Base Medicare rate

$32.35

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

0.62

PE RVU (NF)

0.36

MP RVU

0.02

Total RVU

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Bill 88387 per specimen, not per tissue block or section - ensure documentation clearly identifies each distinct anatomical specimen examined
Impact: Proper unit billing can increase reimbursement by 200-300% when multiple specimens from different anatomical sites are examined
Document the specific anatomical structures identified and measured during macroscopic examination to support medical necessity
Impact: Detailed documentation reduces denial rate by approximately 40% and supports audit defense
Verify that 88387 is appropriate rather than routine gross examination codes (88300 series) - this code is specifically for disarticulated tissue
Impact: Using the correct code prevents $15-20 underpayment versus generic surgical pathology codes
When performed with frozen section or other intraoperative consultations, ensure separate documentation and appropriate sequencing
Impact: Proper sequencing with modifier 59 when appropriate can prevent bundling denials worth $32.35 per occurrence
For Medicare claims, ensure CLIA number and ordering physician NPI are included to prevent automatic rejections
Impact: Reduces claim rejection rate by 25-30%, preventing 15-30 day payment delays
Bill with appropriate diagnosis codes indicating the reason for disarticulation or amputation to establish medical necessity
Impact: Specific diagnosis coding reduces medical necessity denials by approximately 35%

Common denials

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 88387 in 2025?

The 2025 Medicare national average reimbursement rate for CPT 88387 is $32.35 for both facility and non-facility settings. This rate is based on 1.00 total RVUs (0.62 work RVU, 0.36 practice expense RVU, 0.02 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465.

How does CPT 88387 differ from surgical pathology gross examination codes?

CPT 88387 is specifically for macroscopic examination and preparation of disarticulated tissue (tissue separated at joints), while surgical pathology codes (88300-88309) cover routine gross and microscopic examination of surgical specimens. 88387 focuses on the specialized gross examination of joint-separated tissue requiring anatomical knowledge of articulated structures, not the microscopic diagnosis.

Can I bill CPT 88387 multiple times for the same patient on the same day?

Yes, you can bill 88387 multiple times if examining multiple distinct specimens from different anatomical sites. Each disarticulated joint or anatomical specimen examined separately warrants a separate unit. Documentation must clearly identify each distinct specimen with separate accession numbers and anatomical descriptions to support multiple units.

What modifiers are commonly used with CPT code 88387?

The most common modifiers for 88387 are modifier 26 (professional component only), TC (technical component only), 90 (reference laboratory), and 59 (distinct procedural service when billed with other pathology codes). Modifier 91 may be used for medically necessary repeat examinations on the same day.

Do I need a pathologist to bill CPT 88387 or can a histotechnologist perform it?

While certified histotechnologists or pathology assistants can perform the technical aspects of macroscopic examination and tissue preparation, the service must be performed under the supervision of a board-certified pathologist in a CLIA-certified laboratory. The supervising pathologist is ultimately responsible for the examination quality and findings.

What documentation is required to support billing CPT 88387?

Required documentation includes specimen source and anatomical origin, detailed gross anatomical description with measurements, identification of specific joint structures, tissue preparation method, pathologist supervision documentation, date/time of examination, and correlation with clinical history. This documentation must clearly demonstrate why disarticulated tissue examination was medically necessary.

What are the most common reasons for denial of CPT 88387 claims?

The most common denials occur due to bundling with surgical pathology codes (88300-88309), insufficient documentation of medical necessity, missing CLIA certification numbers, and inadequate diagnosis coding that doesn't support the need for specialized macroscopic examination. Vague specimen descriptions also lead to denials when payers cannot distinguish this service from routine gross examination.