CPT code 27175: Slipped epiphysis treatment, without manipulation2026 Medicare rate & RVUs in California

CMS doesn’t publish an office rate for 27175 in California.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 27175 covers

This code represents closed treatment of a slipped capital femoral epiphysis when the surgeon does not manipulate the displaced femoral head. Orthopedic surgeons commonly use it for in-situ stabilization, often with percutaneous fixation, in an adolescent with a stable slip. The service is performed in an operative setting; the key distinction is treatment without manipulation, not a particular slip severity or implant choice.

Select this code when the operative record supports closed treatment without manipulation, and document the diagnosis, affected side, approach, and whether manipulation was performed. The 90-day global period includes the day-before preoperative visit and related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and others at 50%. For bilateral treatment, modifier 50 is paid at 150%. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where 27175 pays more and less in California

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

29 of 29 payment localities

How the 27175 rate is calculated

Each of 27175’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 27175

27175 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 50

27175 compared with similar codes

How to choose

27176Slipped epiphysis treatmentClosed, with manipulation

Both describe closed treatment of slipped femoral epiphysis. Choose 27175 when no manipulation is performed; choose 27176 when manipulation is performed.

27177Slipped epiphysisAcute, open treatment

27177 is for open treatment. Use 27175 for closed treatment without manipulation.

27178SCFE surgeryOsteotomy with fixation

27178 describes open treatment with osteotomy. It is distinct from closed treatment without manipulation reported with 27175.

Codes related to 27175

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates