DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

M17 Osteoarthritis of knee

  • Header · not billable

M17 is not billable. The category heads 11 billable codes in FY2027, grouped under 7 subdivisions.

Index → code

  • Osteoarthritisknee → M17.9
  • Osteoarthritiskneeprimary → M17.1-
  • Osteoarthritisprimaryknee → M17.1-

Where it sits

  1. Chapter 13 Diseases of the musculoskeletal system and connective tissue (M00-M99)
  2. M15-M19 Osteoarthritis (M15-M19)
  3. M17 Osteoarthritis of knee
Billable codes
11
Subdivisions
7
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
16

Codes in M17

  1. M17.0
    Bilateral primary osteoarthritis of knee
    Billable
  2. M17.1
    Unilateral primary osteoarthritis of knee
    Header
    Inclusion terms 1

    Inclusion terms

    • Primary osteoarthritis of knee NOS
  3. M17.10
    Unilateral primary osteoarthritis, unspecified knee
    Billable
  4. M17.11
    Unilateral primary osteoarthritis, right knee
    Billable
  5. M17.12
    Unilateral primary osteoarthritis, left knee
    Billable
  6. M17.2
    Bilateral post-traumatic osteoarthritis of knee
    Billable
  7. M17.3
    Unilateral post-traumatic osteoarthritis of knee
    Header
    Inclusion terms 1

    Inclusion terms

    • Post-traumatic osteoarthritis of knee NOS
  8. M17.30
    Unilateral post-traumatic osteoarthritis, unspecified knee
    Billable
  9. M17.31
    Unilateral post-traumatic osteoarthritis, right knee
    Billable
  10. M17.32
    Unilateral post-traumatic osteoarthritis, left knee
    Billable
  11. M17.4
    Other bilateral secondary osteoarthritis of knee
    Billable
  12. M17.5
    Other unilateral secondary osteoarthritis of knee
    Billable
    Inclusion terms 1

    Inclusion terms

    • Secondary osteoarthritis of knee NOS
  13. M17.9
    Osteoarthritis of knee, unspecified
    Billable

Sources of each column.

Instructions

Notes that also apply

Block M15-M19 instructions (Excludes2 1): printed on the block page.

Instructions for the group M00-M25 (Includes 1): printed on the chapter 13 page.

Chapter 13 instructions (Notes 1, Excludes2 10): printed on the chapter 13 page.

Index entries

  • Osteoarthritisknee → M17.9
  • Osteoarthritiskneebilateral → M17.0
  • Osteoarthritiskneeprimary → M17.1-
  • Osteoarthritiskneeunilateral → M17.1-
  • Osteoarthritisprimaryknee → M17.1-
  • Osteoarthritispost-traumatic NECknee → M17.3-
  • Osteoarthritissecondaryknee → M17.5-
  • Osteoarthritiskneeprimarybilateral → M17.0
  • Osteoarthritisprimarykneebilateral → M17.0
  • Osteoarthritiskneeunilateralprimary → M17.1-
  • Osteoarthritiskneebilateralpost-traumatic → M17.2
  • Osteoarthritispost-traumatic NECkneebilateral → M17.2
  • Osteoarthritiskneeunilateralpost-traumatic → M17.3-
  • Osteoarthritiskneebilateralsecondary → M17.4
  • Osteoarthritissecondarykneebilateral → M17.4
  • Osteoarthritiskneeunilateralsecondary NEC → M17.5

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy