2019 ICD-10-CM Diagnosis Code M16.1

Unilateral primary osteoarthritis of hip

    2016 2017 2018 2019 Non-Billable/Non-Specific Code
  • M16.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2019 edition of ICD-10-CM M16.1 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of M16.1 - other international versions of ICD-10 M16.1 may differ.
Applicable To
  • Primary osteoarthritis of hip NOS
The following code(s) above M16.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M16.1:
  • M00-M99
    2019 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • arthropathic psoriasis (L40.5-)
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • compartment syndrome (traumatic) (T79.A-)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the musculoskeletal system and connective tissue
  • M15-M19
    2019 ICD-10-CM Range M15-M19

    Osteoarthritis

    Type 2 Excludes
    • osteoarthritis of spine (M47.-)
    Osteoarthritis
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to M16.1:
  • Osteoarthritis M19.90
    ICD-10-CM Diagnosis Code M19.90

    Unspecified osteoarthritis, unspecified site

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Arthrosis NOS
    • Arthritis NOS
    • Osteoarthritis NOS
    • hip M16.1-
    • primary M19.91
      ICD-10-CM Diagnosis Code M19.91

      Primary osteoarthritis, unspecified site

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Primary osteoarthritis NOS

ICD-10-CM Codes Adjacent To M16.1
M15 Polyosteoarthritis
M15.0 Primary generalized (osteo)arthritis
M15.1 Heberden's nodes (with arthropathy)
M15.2 Bouchard's nodes (with arthropathy)
M15.3 Secondary multiple arthritis
M15.4 Erosive (osteo)arthritis
M15.8 Other polyosteoarthritis
M15.9 Polyosteoarthritis, unspecified
M16 Osteoarthritis of hip
M16.0 Bilateral primary osteoarthritis of hip
M16.1 Unilateral primary osteoarthritis of hip
M16.10 Unilateral primary osteoarthritis, unspecified hip
M16.11 Unilateral primary osteoarthritis, right hip
M16.12 Unilateral primary osteoarthritis, left hip
M16.2 Bilateral osteoarthritis resulting from hip dysplasia
M16.3 Unilateral osteoarthritis resulting from hip dysplasia
M16.30 …… unspecified hip
M16.31 …… right hip
M16.32 …… left hip
M16.4 Bilateral post-traumatic osteoarthritis of hip
M16.5 Unilateral post-traumatic osteoarthritis of hip

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.