M1046 – Functional status measured by the oxford knee score (oks) at one year (9 to 15 months) postoperatively was less than 37 or the knee injury and osteoarthritis outcome score joint replacement (koos, jr.) was less than 71 postoperatively
HCPCS Level II code · M codes: Medical Services and Quality Measures
HCPCS codeM1046
- Long description
- Functional status measured by the oxford knee score (oks) at one year (9 to 15 months) postoperatively was less than 37 or the knee injury and osteoarthritis outcome score joint replacement (koos, jr.) was less than 71 postoperatively
- Short description
- Fs oks 9-15mo < 37 < 71
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
Z2Undefined codes- Added
- January 1, 2019
- Last change
- January 1, 2021 – No change
Frequently asked questions
What is HCPCS code M1046?
M1046 is a HCPCS Level II code for functional status measured by the oxford knee score (oks) at one year (9 to 15 months) postoperatively was less than 37 or the knee injury and osteoarthritis outcome score joint replacement (koos, jr.) was less than 71 postoperatively.
Does Medicare cover M1046?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby M codes
- M1038 – Patients with a diagnosis of lumbar spine region fracture at the time of the procedure
- M1039 – Patients with a diagnosis of lumbar spine region infection at the time of the procedure
- M1040 – Patients with a diagnosis of lumbar idiopathic or congenital scoliosis
- M1041 – Patient had cancer, acute fracture or infection related to the lumbar spine or patient had neuromuscular, idiopathic or congenital lumbar scoliosis
- M1042 – Functional status measurement with score was obtained utilizing the oswestry disability index (odi version 2.1a) patient reported outcome tool within three months preoperatively and at one year (9 to 15 months) postoperatively
- M1043 – Functional status was not measured by the oswestry disability index (odi version 2.1a) at one year (9 to 15 months) postoperatively
- M1044 – Functional status was measured by the oswestry disability index (odi version 2.1a) patient reported outcome tool within three months preoperatively and at one year (9 to 15 months) postoperatively
- M1045 – Functional status measured by the oxford knee score (oks) at one year (9 to 15 months) postoperatively was greater than or equal to 37 or knee injury and osteoarthritis outcome score joint replacement (koos, jr.) was greater than or equal to 71
- M1047 – Functional status was measured by the oxford knee score (oks) patient reported outcome tool within three months preoperatively and at one year (9 to 15 months) postoperatively
- M1048 – Functional status measurement with score was obtained utilizing the oswestry disability index (odi version 2.1a) patient reported outcome tool within three months preoperatively and at three months (6 to 20 weeks) postoperatively
- M1049 – Functional status was not measured by the oswestry disability index (odi version 2.1a) at three months (6 - 20 weeks) postoperatively
- M1050 – Functional status was measured by the oswestry disability index (odi version 2.1a) patient reported outcome tool within three months preoperatively and at three months (6 to 20 weeks) postoperatively
- M1051 – Patient had cancer, acute fracture or infection related to the lumbar spine or patient had neuromuscular, idiopathic or congenital lumbar scoliosis
- M1052 – Leg pain was not measured by the visual analog scale (vas) or numeric pain scale at one year (9 to 15 months) postoperatively
- M1053 – Leg pain was measured by the visual analog scale (vas) within three months preoperatively and at one year (9 to 15 months) postoperatively
- M1054 – Patient had only urgent care visits during the performance period
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.