HCPCS Code 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
Code effective Jan 01, 2021

HCPCS Section
Medical services

M1046 is a valid 2026 HCPCS code meaning 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 or (Fs oks 9-15mo < 37 < 71) for short. HCPCS M1046 has been effective since 01/01/2021 and applies to Medical care.

HCPCS Code Details - M1046

HCPCS Level II Code
Section M - Medical services
HCPCS Code M1046
Description

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

HCPCS Pricing indicator 00 - Physician Fee Schedule And Non-Physician Practitioners - Service not separately priced by part B (e.g., services not covered, bundled, used by Part A only, etc.)
Multiple pricing indicator 9 - Not applicable as HCPCS not priced separately by part B or value is not established
Coverage code C - Carrier judgment
BETOS2 code Z2 - Undefined codes
HCPCS Action code N - No maintenance for this code
Type of service 1 - Medical care
Effective date Effective Jan 01, 2021
Date added Added Jan 01, 2019

See also

  • HCPCS G2142 · Functional status measured by the oswestry disability index (odi version 2.1a) at one year (9 to 15 months) postoperatively was less than or equal to 22 or functional status measured by the odi version 2.1a within three months preoperatively and at one year (9 to 15 months) postoperatively demonstrated an improvement of 30 points or greater

  • HCPCS G2143 · Functional status measured by the oswestry disability index (odi version 2.1a) at one year (9 to 15 months) postoperatively was greater than 22 and functional status measured by the odi version 2.1a within three months preoperatively and at one year (9 to 15 months) postoperatively demonstrated an improvement of less than 30 points

  • HCPCS G2144 · Functional status measured by the oswestry disability index (odi version 2.1a) at three months (6-20 weeks) postoperatively was less than or equal to 22 or functional status measured by the odi version 2.1a within three months preoperatively and at three months (6-20 weeks) postoperatively demonstrated an improvement of 30 points or greater

  • HCPCS G2145 · Functional status measured by the oswestry disability index (odi version 2.1a) at three months (6 - 20 weeks) postoperatively was greater than 22 and functional status measured by the odi version 2.1a within three months preoperatively and at three months (6 - 20 weeks) postoperatively demonstrated an improvement of less than 30 points

  • HCPCS 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

  • HCPCS 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

1 Two-digit numeric codes are Level I code modifiers copyrighted© by the American Medical Association's Current Procedural Terminology (CPT).

2 BETOS stands for “Berenson-Eggers Type Of Service”

HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 6/23/2026

CPT® is a registered trademark of the American Medical Association (AMA). All rights reserved.