2021 ICD-10-CM Diagnosis Code M94.1

Relapsing polychondritis

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M94.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM M94.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M94.1 - other international versions of ICD-10 M94.1 may differ.
The following code(s) above M94.1 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 M94.1:
  • M00-M99
    2021 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
  • M91-M94
    2021 ICD-10-CM Range M91-M94

    Chondropathies

    Type 1 Excludes
    • postprocedural chondropathies (M96.-)
    Chondropathies
Clinical Information
  • An acquired disease of unknown etiology, chronic course, and tendency to recur. It is characterized by inflammation and degeneration of cartilage and can result in deformities such as floppy ear and saddle nose. Loss of cartilage in the respiratory tract can lead to respiratory obstruction.
ICD-10-CM M94.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 564 Other musculoskeletal system and connective tissue diagnoses with mcc
  • 565 Other musculoskeletal system and connective tissue diagnoses with cc
  • 566 Other musculoskeletal system and connective tissue diagnoses without cc/mcc

Convert M94.1 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to M94.1:

ICD-10-CM Codes Adjacent To M94.1
M93.962 Osteochondropathy, unspecified, left lower leg
M93.969 Osteochondropathy, unspecified, unspecified lower leg
M93.97 Osteochondropathy, unspecified of ankle and foot
M93.971 Osteochondropathy, unspecified, right ankle and foot
M93.972 Osteochondropathy, unspecified, left ankle and foot
M93.979 Osteochondropathy, unspecified, unspecified ankle and foot
M93.98 …… other
M93.99 …… multiple sites
M94 Other disorders of cartilage
M94.0 Chondrocostal junction syndrome [Tietze]
M94.1 Relapsing polychondritis
M94.2 Chondromalacia
M94.20 …… unspecified site
M94.21 Chondromalacia, shoulder
M94.211 Chondromalacia, right shoulder
M94.212 Chondromalacia, left shoulder
M94.219 Chondromalacia, unspecified shoulder
M94.22 Chondromalacia, elbow
M94.221 Chondromalacia, right elbow
M94.222 Chondromalacia, left elbow
M94.229 Chondromalacia, unspecified elbow

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