HCPCS G8723: Specimen Site Other Than Primary Tumor - OpenPayer

Summary & Overview

HCPCS G8723: Specimen Site Other Than Primary Tumor

HCPCS Level II code G8723 denotes that a specimen was obtained from a site other than the anatomic location of the primary tumor. This designation matters for clinical documentation, claims processing, and pathology reporting because it clarifies the origin of diagnostic material and can affect clinical interpretation and coding accuracy. Nationally, clear use of G8723 supports consistent billing and avoids denials tied to specimen-source discrepancies.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find an overview of how G8723 is applied in clinical and billing workflows, common payer considerations, and the clinical context in which the code appears. The publication outlines benchmarks and policy considerations where available, explains typical sites of service and service type, and highlights areas where documentation should specify specimen origin.

The piece is intended for billing professionals, clinical documentation specialists, and health system administrators seeking a concise reference to the code's purpose, typical use cases, and payer coverage landscape. Data not available in the input will be explicitly noted in relevant sections.

AetnaBlue Cross Blue ShieldCignaUnitedHealthcareMedicareG8723HCPCS Level IIpathologyspecimen-sourcediagnostic-testinghospital-outpatientcoding-complianceclaims-processing

Billing Code Overview

HCPCS Level II code G8723 indicates that the specimen site is other than the anatomic location of the primary tumor. This code is used to report situations where a tissue or fluid specimen is obtained from a site that differs from the original tumor location.

Service type: Pathology specimen collection/handling related to diagnostic sampling from a non-primary tumor site
Typical site of service: Hospital outpatient departments, ambulatory surgical centers, clinic or office-based specimen collection, and pathology laboratories

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 62-year-old patient with a known primary colorectal adenocarcinoma undergoes surveillance imaging and colonoscopy that identify suspected metastatic disease in the liver. Interventional radiology performs a percutaneous liver biopsy to obtain tissue for histopathology and molecular testing. The pathology specimen label and requisition indicate the specimen site is the liver, which is other than anatomic location of primary tumor for colorectal cancer. The clinical workflow includes pre-procedure consent, image-guided percutaneous core needle biopsy, sample handling with separate container labels indicating site of origin, transport to surgical pathology for frozen section or permanent section analysis, and submission of additional tissue for molecular profiling.

Relevant clinical steps:

Pre-procedure evaluation and consent, review of imaging and coagulation status.
Image-guided biopsy (ultrasound or CT) with local anesthesia and conscious sedation as needed.
Immediate specimen labeling that documents the specimen site distinct from the primary tumor location.
Receipt and accessioning in pathology, with documentation that specimen site is not the primary tumor anatomic location for accurate coding and reporting.
Ancillary testing (immunohistochemistry, molecular assays) performed as indicated for staging and therapy selection.

Coding Specifications

HCPCS G9933: Screening Colonoscopy with Adenoma or Colorectal Cancer Detected

HCPCS-G2129-PROCEDURE-RELATED-BP-NOT-TAKEN-OUTPATIENT-PROCEDURE

HCPCS G2129: Procedure-Related Blood Pressures Not Taken

HCPCS-G4024-PEDIATRICS-MIPS-SPECIALTY-SET

HCPCS G4024: Pediatrics MIPS Specialty Set

HCPCS-G6022-SIGMOIDOSCOPY-FLEXIBLE-LESION-ABLATION

HCPCS G6022: Flexible Sigmoidoscopy with Lesion Ablation

HCPCS-G9756-SURGICAL-USE-OF-SILICONE-OIL

HCPCS G9756: Surgical Procedures Involving Silicone Oil

HCPCS-G2066-REMOTE-IMPLANTABLE-LOOP-RECORDER-MONITORING

HCPCS G2066: Remote Interrogation for Implantable Cardiac Monitors

HCPCS-G0089-HOME-SUBCUTANEOUS-IMMUNOTHERAPY-INITIAL-VISIT

HCPCS G0089: Initial Home Subcutaneous Immunotherapy/Infusion Visit

HCPCS-G0022-COMMUNITY-HEALTH-INTEGRATION-ADDITIONAL-30-MIN

HCPCS G0022: Community Health Integration, Additional 30 Minutes

HCPCS-LEVEL-II-G8416-FOOTWEAR-EVALUATION-INELIGIBLE-DOCUMENTATION

HCPCS Level II G8416: Clinician-documented Ineligibility for Footwear Evaluation

HCPCS-G8573-STROKE-FOLLOWING-ISOLATED-CABG-SURGERY

HCPCS G8573: Stroke Following Isolated CABG Surgery

Showing 1–10 of 1996

Taxonomy Code	Specialty	Notes
207RC0000X	Radiology – Diagnostic	Interventional radiologists commonly perform image-guided biopsies of nonprimary sites.
208D00000X	General Surgery	Surgeons perform biopsies of accessible metastatic sites or guide operative tissue sampling.
207L00000X	Anatomic and Clinical Pathology	Pathologists receive, process, and report biopsy specimens; essential for correct specimen-site documentation.
208000000X	Anesthesiology	Anesthesiologists provide general or monitored anesthesia care when required for biopsy procedures.
363LA2200X	Nurse Practitioner	Nurse practitioners frequently assist in preoperative evaluation and some procedures depending on state scope of practice.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C18.9`	Malignant neoplasm of colon, unspecified	Primary colorectal malignancies may metastasize to liver; biopsy of liver is specimen site other than primary tumor.
`C22.0`	Liver cell carcinoma	Distinguishes primary liver malignancy from metastatic disease when tissue is obtained from the liver.
`C78.7`	Secondary malignant neoplasm of liver and intrahepatic bile duct	Directly indicates metastatic disease to the liver — common reason for biopsy of a site other than the primary tumor.
`C77.0`	Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck	Biopsy of nodal sites may represent sampling of nonprimary anatomic locations.
`C79.51`	Secondary malignant neoplasm of bone	Bone metastasis sampling is another example where specimen site differs from primary tumor.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`10022`	Fine needle aspiration biopsy, without imaging guidance; first lesion	Performed for cytologic diagnosis of a nonprimary site when a less invasive sample is adequate prior to core biopsy.
`10021`	Fine needle aspiration biopsy, without imaging guidance; superficial (e.g., thyroid, breast)	Alternative cytology sampling code used for accessible superficial metastatic sites.
`38220`	Bone marrow biopsy, needle or trocar; aspiration, with or without biopsy	Representative for centrally performed tissue sampling when marrow is the nonprimary site of interest.
`36591`	Collection of blood specimen from newborn via capillary puncture	Not typical for this code; included only if specialized sample types are required for ancillary testing.
`88172`	Cytopathology, smears interpretation	Often billed by pathology when rapid onsite evaluation of FNA is done to confirm adequacy during biopsy of nonprimary sites.

Note: Related CPT codes listed reflect commonly performed tissue acquisition and pathology services that may occur alongside collection of a specimen from a site other than the anatomic location of the primary tumor.

`22`	Increased procedural services	Use when work or complexity of processing or reporting a specimen is substantially greater than usually required (e.g., difficult access, multiple passes, complex specimen processing).
`23`	Unusual anesthesia	Use when general anesthesia is medically necessary for biopsy when local/regional would normally be used.
`52`	Reduced services	Use when the biopsy procedure is partially reduced or not completed as planned.
`53`	Discontinued procedure	Use when the biopsy attempt is started but discontinued for patient safety or technical reasons.
`54`	Surgical care only	Use when billing only for the surgical portion and another provider bills postoperative care.
`55`	Postoperative management only	Use when only postoperative care is billed by a provider other than the surgeon performing the biopsy.
`56`	Preoperative management only	Use when only preoperative evaluation is billed by a provider other than the surgeon.
`62`	Two surgeons	Use when two surgeons of different specialties perform distinct portions of a complex biopsy/resection procedure.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Use when an assistant at surgery from the cited clinician type participates and the payer recognizes `AS`.
`FX`	Primary surgeon not present when a resident performs surgery	Use when billing rules require reporting that the primary surgeon was not present and a resident performed the procedure.
`QK`	Medical direction of two, three, or four qualified health care professionals	Use when the billing physician medically directs multiple concurrent anesthesia-qualified professionals.
`QX`	Qualified nonphysician anesthetist service with medical direction by a physician	Use when a certified registered nurse anesthetist provides anesthesia under physician direction.
`QY`	Medical direction of one certified registered nurse anesthetist by an anesthesiologist	Use when the anesthesiologist medically directs a CRNA for the case.

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