M26.0
⚠ Non-billable
Major anomalies of jaw size
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M26.0
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Musculoskeletal System and Connective Tissue
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code M26.0?
ICD-10-CM code M26.0 represents Major anomalies of jaw size. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M26.0 billable?
No. M26.0 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is M26.0 in?
M26.0 belongs to the Diseases of the Musculoskeletal System and Connective Tissue chapter (M00–M99) of ICD-10-CM.
Related codes in the M26 category
M26
Dentofacial anomalies [including malocclusion]
Non-billable
M26.1
Anomalies of jaw-cranial base relationship
Non-billable
M26.2
Anomalies of dental arch relationship
Non-billable
M26.3
Anomalies of tooth position of fully erupted tooth or teeth
Non-billable
M26.4
Malocclusion, unspecified
Billable
M26.5
Dentofacial functional abnormalities
Non-billable
M26.6
Temporomandibular joint disorders
Non-billable
M26.7
Dental alveolar anomalies
Non-billable
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