2020 ICD-10-CM Diagnosis Code M18.11

Unilateral primary osteoarthritis of first carpometacarpal joint, right hand

    2016 2017 2018 2019 2020 Billable/Specific Code
  • M18.11 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Unil primary osteoarth of first carpometacarp joint, r hand
  • The 2020 edition of ICD-10-CM M18.11 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M18.11 - other international versions of ICD-10 M18.11 may differ.
The following code(s) above M18.11 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 M18.11:
  • M00-M99
    2020 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
    2020 ICD-10-CM Range M15-M19

    Osteoarthritis

    Type 2 Excludes
    • osteoarthritis of spine (M47.-)
    Osteoarthritis
  • M18.1
    ICD-10-CM Diagnosis Code M18.1

    Unilateral primary osteoarthritis of first carpometacarpal joint

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Primary osteoarthritis of first carpometacarpal joint NOS
    Unilateral primary osteoarthritis of first carpometacarpal joint
Approximate Synonyms
  • Osteoarthritis of right first wrist joint
  • Primary localized osteoarthritis of the first right carpometacarpal joint
  • Primary osteoarthritis of right first wrist joint
ICD-10-CM M18.11 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 553 Bone diseases and arthropathies with mcc
  • 554 Bone diseases and arthropathies without mcc

Convert M18.11 to ICD-9-CM

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
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To M18.11
M17.30 Unilateral post-traumatic osteoarthritis, unspecified knee
M17.31 Unilateral post-traumatic osteoarthritis, right knee
M17.32 Unilateral post-traumatic osteoarthritis, left knee
M17.4 Other bilateral secondary osteoarthritis of knee
M17.5 Other unilateral secondary osteoarthritis of knee
M17.9 Osteoarthritis of knee, unspecified
M18 Osteoarthritis of first carpometacarpal joint
M18.0 Bilateral primary osteoarthritis of first carpometacarpal joints
M18.1 Unilateral primary osteoarthritis of first carpometacarpal joint
M18.10 …… unspecified hand
M18.11 …… right hand
M18.12 …… left hand
M18.2 Bilateral post-traumatic osteoarthritis of first carpometacarpal joints
M18.3 Unilateral post-traumatic osteoarthritis of first carpometacarpal joint
M18.30 …… unspecified hand
M18.31 …… right hand
M18.32 …… left hand
M18.4 Other bilateral secondary osteoarthritis of first carpometacarpal joints
M18.5 Other unilateral secondary osteoarthritis of first carpometacarpal joint
M18.50 …… unspecified hand
M18.51 …… right hand

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