M26.23
✓ Billable
Excessive horizontal overlap
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M26.23
System
ICD-10-CM
Billable
Yes — valid for submission
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 M26.23?
ICD-10-CM code M26.23 represents Excessive horizontal overlap. It is a billable diagnosis code in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M26.23 billable?
Yes. M26.23 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is M26.23 in?
M26.23 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
M26.0
Major anomalies of jaw size
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
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