Coding Advice

This section is intended primarily for the professional clinical coder in hospitals who produce the SMR01 records.

Any coding guidelines issued by PHS that contain guidance relating to arthroplasty will be posted on this website.

Metal-on-metal hip resurfacing arthroplasty:

This procedure is emerging as an alternative to conventional total hip replacement (THR) for certain patients with advanced hip disease. Candidates for MoM hip resurfacing will usually be amongst the younger and more active of such patients, who would be likely to outlive the expected lifespan of a conventional hip prosthesis.

Unlike a THR, the MoM resurfacing procedure conserves the femoral head and neck, the shaped femoral head being fitted with a metal surface and the acetabulum being lined with a metal cup. This technique leaves open the option of subsequent revision to THR.
The OPCS4 coding for a metal-on-metal hip resurfacing arthroplasty is

W58.1 Primary resurfacing arthroplasty of joint
Z84.3 Hip Joint

Note: This procedure should not be confused with metal-on-metal total hip replacement.

Diagnosis and Procedure Codes used by the Project

Procedure codes used by the SAP to select patients who have undergone a joint replacement operation and groupings of these procedures for analysis.

Diagnosis and procedure codes used by the SAP to identify a complication after a joint replacement.