Summary & Overview
CPT 58579: Unlisted Hysteroscopy Procedure of the Uterus
CPT code 58579 denotes an unlisted hysteroscopy procedure of the uterus used when no specific hysteroscopy CPT code applies. It captures uncommon procedures or those using new technologies within the female genital system and is a catch-all for services that lack an exact code. Nationally, use of an unlisted procedural code like 58579 affects claims processing, medical necessity review, and requires clear clinical documentation to support service description and reimbursement.
Key payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise explanation of what the code represents, typical settings where the procedure is performed, and what documentation and coding considerations are commonly required when unlisted hysteroscopy services are billed. The publication outlines benchmarking context and policy considerations relevant to payers and providers, summarizes common modifier usage patterns, and highlights clinical context for when 58579 is appropriate versus when a specific hysteroscopy code should be used.
This national overview is intended to help coding professionals, billing teams, and policy analysts understand the purpose of CPT code 58579, the payer landscape, and the types of operational and documentation issues that commonly arise with unlisted hysteroscopic procedures.
Billing Code Overview
CPT code 58579 is an unlisted hysteroscopy procedure code used to report hysteroscopic procedures of the uterus that do not have a specific CPT descriptor in the female genital system. This code is intended for procedures that are uncommon or involve new or evolving technologies and should be used only when no other hysteroscopy-specific CPT code accurately describes the service.
Service type: Hysteroscopic uterine procedure (unlisted)
Typical site of service: Outpatient surgical center or hospital outpatient department, and may also be used in ambulatory surgery settings depending on facility capabilities and the procedure performed.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 38-year-old woman with a history of persistent abnormal uterine bleeding and failed medical management presents for diagnostic and possible therapeutic hysteroscopy. After preoperative evaluation in the outpatient gynecology clinic, informed consent is obtained for hysteroscopy under monitored anesthesia care. The procedural workflow includes pre-op vital signs and review of imaging (transvaginal ultrasound) suggesting an intrauterine lesion not well characterized. In the operating room, a hysteroscope is introduced transcervically to inspect the endometrial cavity; targeted biopsies and possible removal of an unusual lesion or use of a novel endoscopic device may be performed. Because 58579 is an unlisted hysteroscopy code, the operative report documents the indications, detailed description of the hysteroscopic technique, findings, instrumentation, and time, and includes intraoperative images or pathology when applicable. Postprocedure recovery includes monitoring in the PACU and discharge with instructions for expected cramping and bleeding. Billing uses 58579 only when no specific hysteroscopic CPT code accurately describes the service performed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the hysteroscopic procedure requires substantially greater effort, time, or technical difficulty than typical and documentation supports unusual complexity. |