Table 1 International Classification of Diseases (ICD), Ninth Revision, Procedure Classification System (ICD-9-PCS) codes used to define exposures
Surgery Type | ICD-9-PCS Code | Code Description |
|---|---|---|
Spinal fusion (SF) | 81.01 | Atlas-axis spinal fusion |
81.02 | Other cervical fusion of the anterior column, anterior technique | |
81.03 | Other cervical fusion of the posterior column, posterior technique | |
81.04 | Dorsal and dorsolumbar fusion of the anterior column, anterior technique | |
81.05 | Dorsal and dorsolumbar fusion of the posterior column, posterior technique | |
81.06 | Lumbar and lumbosacral fusion of the anterior column, anterior technique | |
81.07 | Lumbar and lumbosacral fusion of the posterior column, posterior technique | |
81.08 | Lumbar and lumbosacral fusion of the anterior column, posterior technique | |
81.31 | Refusion of atlas-axis spine | |
81.32 | Refusion of other cervical spine, anterior column, anterior technique | |
81.33 | Refusion of other cervical spine, posterior column, posterior technique | |
81.34 | Refusion of dorsal and dorsolumbar spine, anterior column, anterior technique | |
81.35 | Refusion of dorsal and dorsolumbar spine, posterior column, posterior technique | |
81.36 | Refusion of lumbar and lumbosacral spine, anterior column, anterior technique | |
81.37 | Refusion of lumbar and lumbosacral spine, posterior column, posterior technique | |
81.38 | Refusion of lumbar and lumbosacral spine, anterior column, posterior technique | |
81.39 | Refusion of spine, not elsewhere classified | |
81.62 | Fusion or refusion of 2–3 vertebrae | |
81.63 | Fusion or refusion of 4–8 vertebrae | |
81.64 | Fusion or refusion of 9 or more vertebrae | |
84.51 | Insertion of interbody spinal fusion device | |
Total hip arthroplasty (THA) | 00.70 | Revision of hip replacement, both acetabular and femoral components |
00.71 | Revision of hip replacement, acetabular component | |
00.72 | Revision of hip replacement, femoral component | |
00.73 | Revision of hip replacement, acetabular liner and/or femoral head only | |
00.85 | Resurfacing hip, total, acetabulum and femoral head | |
00.86 | Resurfacing hip, partial, femoral head | |
00.87 | Resurfacing hip, partial, acetabulum | |
81.51 | Total hip replacement | |
81.52 | Partial hip replacement | |
81.53 | Revision of hip replacement, not otherwise specified | |
Total knee arthroplasty (TKA) | 00.80 | Revision of knee replacement, total (all components) |
00.81 | Revision of knee replacement, tibial component | |
00.82 | Revision of knee replacement, femoral component | |
00.83 | Revision of knee replacement, patellar component | |
00.84 | Revision of total knee replacement, tibial insert (liner) | |
81.54 | Total knee replacement | |
81.55 | Revision of knee replacement, not otherwise specified |