M19 Other and unspecified osteoarthritis

Category / Non-billable header 71 subcodes

Block: Osteoarthritis (M15-M19)

Excludes 1 (cannot be coded together)

  • polyarthritis (M15.-)

Excludes 2 (not included here)

  • arthrosis of spine (M47.-)
  • hallux rigidus (M20.2)
  • osteoarthritis of spine (M47.-)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
M19..0 Primary osteoarthritis of other joints No
M19..01 Primary osteoarthritis, shoulder No
M19..011 Primary osteoarthritis, right shoulder Yes
M19..012 Primary osteoarthritis, left shoulder Yes
M19..019 Primary osteoarthritis, unspecified shoulder Yes
M19..02 Primary osteoarthritis, elbow No
M19..021 Primary osteoarthritis, right elbow Yes
M19..022 Primary osteoarthritis, left elbow Yes
M19..029 Primary osteoarthritis, unspecified elbow Yes
M19..03 Primary osteoarthritis, wrist No
M19..031 Primary osteoarthritis, right wrist Yes
M19..032 Primary osteoarthritis, left wrist Yes
M19..039 Primary osteoarthritis, unspecified wrist Yes
M19..04 Primary osteoarthritis, hand No
M19..041 Primary osteoarthritis, right hand Yes
M19..042 Primary osteoarthritis, left hand Yes
M19..049 Primary osteoarthritis, unspecified hand Yes
M19..07 Primary osteoarthritis ankle and foot No
M19..071 Primary osteoarthritis, right ankle and foot Yes
M19..072 Primary osteoarthritis, left ankle and foot Yes
M19..079 Primary osteoarthritis, unspecified ankle and foot Yes
M19..09 Primary osteoarthritis, other specified site Yes
M19..1 Post-traumatic osteoarthritis of other joints No
M19..11 Post-traumatic osteoarthritis, shoulder No
M19..111 Post-traumatic osteoarthritis, right shoulder Yes
M19..112 Post-traumatic osteoarthritis, left shoulder Yes
M19..119 Post-traumatic osteoarthritis, unspecified shoulder Yes
M19..12 Post-traumatic osteoarthritis, elbow No
M19..121 Post-traumatic osteoarthritis, right elbow Yes
M19..122 Post-traumatic osteoarthritis, left elbow Yes
M19..129 Post-traumatic osteoarthritis, unspecified elbow Yes
M19..13 Post-traumatic osteoarthritis, wrist No
M19..131 Post-traumatic osteoarthritis, right wrist Yes
M19..132 Post-traumatic osteoarthritis, left wrist Yes
M19..139 Post-traumatic osteoarthritis, unspecified wrist Yes
M19..14 Post-traumatic osteoarthritis, hand No
M19..141 Post-traumatic osteoarthritis, right hand Yes
M19..142 Post-traumatic osteoarthritis, left hand Yes
M19..149 Post-traumatic osteoarthritis, unspecified hand Yes
M19..17 Post-traumatic osteoarthritis, ankle and foot No
M19..171 Post-traumatic osteoarthritis, right ankle and foot Yes
M19..172 Post-traumatic osteoarthritis, left ankle and foot Yes
M19..179 Post-traumatic osteoarthritis, unspecified ankle and foot Yes
M19..19 Post-traumatic osteoarthritis, other specified site Yes
M19..2 Secondary osteoarthritis of other joints No
M19..21 Secondary osteoarthritis, shoulder No
M19..211 Secondary osteoarthritis, right shoulder Yes
M19..212 Secondary osteoarthritis, left shoulder Yes
M19..219 Secondary osteoarthritis, unspecified shoulder Yes
M19..22 Secondary osteoarthritis, elbow No
M19..221 Secondary osteoarthritis, right elbow Yes
M19..222 Secondary osteoarthritis, left elbow Yes
M19..229 Secondary osteoarthritis, unspecified elbow Yes
M19..23 Secondary osteoarthritis, wrist No
M19..231 Secondary osteoarthritis, right wrist Yes
M19..232 Secondary osteoarthritis, left wrist Yes
M19..239 Secondary osteoarthritis, unspecified wrist Yes
M19..24 Secondary osteoarthritis, hand No
M19..241 Secondary osteoarthritis, right hand Yes
M19..242 Secondary osteoarthritis, left hand Yes
M19..249 Secondary osteoarthritis, unspecified hand Yes
M19..27 Secondary osteoarthritis, ankle and foot No
M19..271 Secondary osteoarthritis, right ankle and foot Yes
M19..272 Secondary osteoarthritis, left ankle and foot Yes
M19..279 Secondary osteoarthritis, unspecified ankle and foot Yes
M19..29 Secondary osteoarthritis, other specified site Yes
M19..9 Osteoarthritis, unspecified site No
M19..90 Unspecified osteoarthritis, unspecified site Yes
M19..91 Primary osteoarthritis, unspecified site Yes
M19..92 Post-traumatic osteoarthritis, unspecified site Yes
M19..93 Secondary osteoarthritis, unspecified site Yes

Last reviewed: September 2026