ICD-10-CM M19: Other and unspecified osteoarthritis

ICD-10-CM Diagnosis Code (2025)

Official Description for M19

Other and unspecified osteoarthritis

Coding Notes & Guidelines for M19

Excludes1: Not Coded Here

polyarthritis (M15.-)

Excludes2: Not Included Here
  • arthrosis of spine (M47.-)
  • hallux rigidus (M20.2)
  • osteoarthritis of spine (M47.-)
Excludes2: Not Included Here

primary osteoarthritis of first carpometacarpal joint (M18.0-, M18.1-)

Excludes2: Not Included Here

post-traumatic osteoarthritis of first carpometacarpal joint (M18.2-, M18.3-)

Inclusion Terms
  • Arthrosis NOS
  • Arthritis NOS
  • Osteoarthritis NOS
Inclusion Terms

Primary osteoarthritis NOS

Inclusion Terms

Post-traumatic osteoarthritis NOS

Inclusion Terms

Secondary osteoarthritis NOS

Child Codes (More Specific Codes for M19):

M19.0 - Primary osteoarthritis of other joints M19.01 - Primary osteoarthritis, shoulder M19.011 - Primary osteoarthritis, right shoulder M19.012 - Primary osteoarthritis, left shoulder M19.019 - Primary osteoarthritis, unspecified shoulder M19.02 - Primary osteoarthritis, elbow M19.021 - Primary osteoarthritis, right elbow M19.022 - Primary osteoarthritis, left elbow M19.029 - Primary osteoarthritis, unspecified elbow M19.03 - Primary osteoarthritis, wrist M19.031 - Primary osteoarthritis, right wrist M19.032 - Primary osteoarthritis, left wrist M19.039 - Primary osteoarthritis, unspecified wrist M19.04 - Primary osteoarthritis, hand M19.041 - Primary osteoarthritis, right hand M19.042 - Primary osteoarthritis, left hand M19.049 - Primary osteoarthritis, unspecified hand M19.07 - Primary osteoarthritis ankle and foot M19.071 - Primary osteoarthritis, right ankle and foot M19.072 - Primary osteoarthritis, left ankle and foot M19.079 - Primary osteoarthritis, unspecified ankle and foot M19.09 - Primary osteoarthritis, other specified site M19.1 - Post-traumatic osteoarthritis of other joints M19.11 - Post-traumatic osteoarthritis, shoulder M19.111 - Post-traumatic osteoarthritis, right shoulder M19.112 - Post-traumatic osteoarthritis, left shoulder M19.119 - Post-traumatic osteoarthritis, unspecified shoulder M19.12 - Post-traumatic osteoarthritis, elbow M19.121 - Post-traumatic osteoarthritis, right elbow M19.122 - Post-traumatic osteoarthritis, left elbow M19.129 - Post-traumatic osteoarthritis, unspecified elbow M19.13 - Post-traumatic osteoarthritis, wrist M19.131 - Post-traumatic osteoarthritis, right wrist M19.132 - Post-traumatic osteoarthritis, left wrist M19.139 - Post-traumatic osteoarthritis, unspecified wrist M19.14 - Post-traumatic osteoarthritis, hand M19.141 - Post-traumatic osteoarthritis, right hand M19.142 - Post-traumatic osteoarthritis, left hand M19.149 - Post-traumatic osteoarthritis, unspecified hand M19.17 - Post-traumatic osteoarthritis, ankle and foot M19.171 - Post-traumatic osteoarthritis, right ankle and foot M19.172 - Post-traumatic osteoarthritis, left ankle and foot M19.179 - Post-traumatic osteoarthritis, unspecified ankle and foot M19.19 - Post-traumatic osteoarthritis, other specified site M19.2 - Secondary osteoarthritis of other joints M19.21 - Secondary osteoarthritis, shoulder M19.211 - Secondary osteoarthritis, right shoulder M19.212 - Secondary osteoarthritis, left shoulder M19.219 - Secondary osteoarthritis, unspecified shoulder M19.22 - Secondary osteoarthritis, elbow M19.221 - Secondary osteoarthritis, right elbow M19.222 - Secondary osteoarthritis, left elbow M19.229 - Secondary osteoarthritis, unspecified elbow M19.23 - Secondary osteoarthritis, wrist M19.231 - Secondary osteoarthritis, right wrist M19.232 - Secondary osteoarthritis, left wrist M19.239 - Secondary osteoarthritis, unspecified wrist M19.24 - Secondary osteoarthritis, hand M19.241 - Secondary osteoarthritis, right hand M19.242 - Secondary osteoarthritis, left hand M19.249 - Secondary osteoarthritis, unspecified hand M19.27 - Secondary osteoarthritis, ankle and foot M19.271 - Secondary osteoarthritis, right ankle and foot M19.272 - Secondary osteoarthritis, left ankle and foot M19.279 - Secondary osteoarthritis, unspecified ankle and foot M19.29 - Secondary osteoarthritis, other specified site M19.9 - Osteoarthritis, unspecified site M19.90 - Unspecified osteoarthritis, unspecified site M19.91 - Primary osteoarthritis, unspecified site M19.92 - Post-traumatic osteoarthritis, unspecified site M19.93 - Secondary osteoarthritis, unspecified site

About ICD-10-CM Code M19 (Other and unspecified osteoarthritis)

ICD-10-CM code M19 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM M19 became effective on October 1, 2024.

This page provides detailed information about M19 - Other and unspecified osteoarthritis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other and unspecified osteoarthritis.