2020 ICD-10-CM Diagnosis Code M26.00

Unspecified anomaly of jaw size

    2016 2017 2018 2019 2020 Billable/Specific Code
  • M26.00 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM M26.00 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M26.00 - other international versions of ICD-10 M26.00 may differ.
The following code(s) above M26.00 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 M26.00:
  • 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
  • M26-M27
    2020 ICD-10-CM Range M26-M27

    Dentofacial anomalies [including malocclusion] and other disorders of jaw

    Type 1 Excludes
    • hemifacial atrophy or hypertrophy (Q67.4)
    • unilateral condylar hyperplasia or hypoplasia (M27.8)
    Dentofacial anomalies [including malocclusion] and other disorders of jaw
  • M26.0
    ICD-10-CM Diagnosis Code M26.0

    Major anomalies of jaw size

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Major anomalies of jaw size
Approximate Synonyms
  • Anomaly of jaw size
  • Major anomaly of jaw size
ICD-10-CM M26.00 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 011 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with mcc
  • 012 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with cc
  • 013 Tracheostomy for face, mouth & neck diagnoses or laryngectomy without cc/mcc
  • 157 Dental and oral diseases with mcc
  • 158 Dental and oral diseases with cc
  • 159 Dental and oral diseases without cc/mcc

Convert M26.00 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

Diagnosis Index entries containing back-references to M26.00:
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • dentofacial M26.9
      ICD-10-CM Diagnosis Code M26.9

      Dentofacial anomaly, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code

ICD-10-CM Codes Adjacent To M26.00
M25.861 Other specified joint disorders, right knee
M25.862 Other specified joint disorders, left knee
M25.869 Other specified joint disorders, unspecified knee
M25.87 Other specified joint disorders, ankle and foot
M25.871 Other specified joint disorders, right ankle and foot
M25.872 Other specified joint disorders, left ankle and foot
M25.879 Other specified joint disorders, unspecified ankle and foot
M25.9 Joint disorder, unspecified
M26 Dentofacial anomalies [including malocclusion]
M26.0 Major anomalies of jaw size
M26.00 Unspecified anomaly of jaw size
M26.01 Maxillary hyperplasia
M26.02 Maxillary hypoplasia
M26.03 Mandibular hyperplasia
M26.04 Mandibular hypoplasia
M26.05 Macrogenia
M26.06 Microgenia
M26.07 Excessive tuberosity of jaw
M26.09 Other specified anomalies of jaw size
M26.1 Anomalies of jaw-cranial base relationship
M26.10 Unspecified anomaly of jaw-cranial base relationship

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