ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 18, 2017

See: Other arthritis

M13.1 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Monoarthritis, not elsewhere classified

More specific codes for Monoarthritis, not elsewhere classified

  • M13.10 - Monoarthritis, not elsewhere classified, unspecified site
  • M13.11 - Monoarthritis, not elsewhere classified, shoulder
    • M13.111 - Monoarthritis, not elsewhere classified, right shoulder
    • M13.112 - Monoarthritis, not elsewhere classified, left shoulder
    • M13.119 - Monoarthritis, not elsewhere classified, unspecified shoulder
  • M13.12 - Monoarthritis, not elsewhere classified, elbow
    • M13.121 - Monoarthritis, not elsewhere classified, right elbow
    • M13.122 - Monoarthritis, not elsewhere classified, left elbow
    • M13.129 - Monoarthritis, not elsewhere classified, unspecified elbow
  • M13.13 - Monoarthritis, not elsewhere classified, wrist
    • M13.131 - Monoarthritis, not elsewhere classified, right wrist
    • M13.132 - Monoarthritis, not elsewhere classified, left wrist
    • M13.139 - Monoarthritis, not elsewhere classified, unspecified wrist
  • M13.14 - Monoarthritis, not elsewhere classified, hand
    • M13.141 - Monoarthritis, not elsewhere classified, right hand
    • M13.142 - Monoarthritis, not elsewhere classified, left hand
    • M13.149 - Monoarthritis, not elsewhere classified, unspecified hand
  • M13.15 - Monoarthritis, not elsewhere classified, hip
    • M13.151 - Monoarthritis, not elsewhere classified, right hip
    • M13.152 - Monoarthritis, not elsewhere classified, left hip
    • M13.159 - Monoarthritis, not elsewhere classified, unspecified hip
  • M13.16 - Monoarthritis, not elsewhere classified, knee
    • M13.161 - Monoarthritis, not elsewhere classified, right knee
    • M13.162 - Monoarthritis, not elsewhere classified, left knee
    • M13.169 - Monoarthritis, not elsewhere classified, unspecified knee
  • M13.17 - Monoarthritis, not elsewhere classified, ankle and foot
    • M13.171 - Monoarthritis, not elsewhere classified, right ankle and foot
    • M13.172 - Monoarthritis, not elsewhere classified, left ankle and foot
    • M13.179 - Monoarthritis, not elsewhere classified, unspecified ankle and foot
See also ICD 10 code for
See the 2017 ICD-10-CM Coding Guidelines.

Questions related to M13.1 Monoarthritis, not elsewhere classified

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.