HCPCS Code M1141

Functional status was not measured by the oxford knee score (oks) or the knee injury and osteoarthritis outcome score joint replacement (koos, jr.) at one year (9 to 15 months) postoperatively
Code effective Jan 01, 2021

HCPCS Section
Medical services

M1141 is a valid 2026 HCPCS code meaning Functional status was not measured by the oxford knee score (oks) or the knee injury and osteoarthritis outcome score joint replacement (koos, jr.) at one year (9 to 15 months) postoperatively or (Fs no oks) for short. HCPCS M1141 has been effective since 01/01/2021 and applies to Medical care.

HCPCS Code Details - M1141

HCPCS Level II Code
Section M - Medical services
HCPCS Code M1141
Description

Long description:
Functional status was not measured by the oxford knee score (oks) or the knee injury and osteoarthritis outcome score joint replacement (koos, jr.) at one year (9 to 15 months) postoperatively

Short description:
Fs no oks

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, 2020

See also

  • HCPCS M1140 · Ongoing care not indicated, patient discharged after only 1-2 visits due to specific medical events, documented in the medical record that make the treatment episode impossible such as the patient becomes hospitalized or scheduled for surgery for surgery or hospitalized

  • HCPCS M1043 · Functional status was not measured by the oswestry disability index (odi version 2.1a) at one year (9 to 15 months) postoperatively

  • HCPCS 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

  • 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

  • HCPCS M1049 · Functional status was not measured by the oswestry disability index (odi version 2.1a) at three months (6 - 20 weeks) postoperatively

  • HCPCS 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

  • HCPCS M1142 · Emergent cases

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

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