M1046 HCPCS Level II code: 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…
M1046 is the HCPCS 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…” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
M1046Functional 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
HCPCS · United States
Medicare details
The indicators CMS publishes with M1046 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Medical care
- BETOS category
- Undefined codes
- Added
- Jan 1, 2019
Where M1046 sits
- 1M codesMedical services and quality measures
- 2Active code M1046Functional 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
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code M1046 mean?
M1046 is the HCPCS 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” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover M1046?
CMS lists M1046’s Medicare coverage as “Carrier judgment” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside M1046
All M codesM1040Patients with a diagnosis of lumbar idiopathic or congenital scoliosisM1041Patient had cancer, acute fracture or infection related to the lumbar spine or patient had neuromuscular, idiopathic or congenital lumbar scoliosisM1042Functional status measurement with score was obtained utilizing the oswestry disability index (odi version 2.1a) patient reported outcome tool within three months preoperatively…M1043Functional status was not measured by the oswestry disability index (odi version 2.1a) at one year (9 to 15 months) postoperativelyM1044Functional 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…M1045Functional 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…M1047Functional 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) postoperativelyM1048Functional status measurement with score was obtained utilizing the oswestry disability index (odi version 2.1a) patient reported outcome tool within three months preoperatively…M1049Functional status was not measured by the oswestry disability index (odi version 2.1a) at three months (6 - 20 weeks) postoperativelyM1050Functional 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…M1051Patient had cancer, acute fracture or infection related to the lumbar spine or patient had neuromuscular, idiopathic or congenital lumbar scoliosisM1052Leg pain was not measured by the visual analog scale (vas) or numeric pain scale at one year (9 to 15 months) postoperatively