All ICD10 Codes

M26

Non-Billable
ChapterM00–M99
Rankcategory
Official Description

Dentofacial anomalies [including malocclusion]

Use a more specific code (2 billable, 8 non-billable)
M26.0Major anomalies of jaw sizehas subcodesM26.1Anomalies of jaw-cranial base relationshiphas subcodesM26.2Anomalies of dental arch relationshiphas subcodesM26.3Anomalies of tooth position of fully erupted tooth or teethhas subcodesM26.4Malocclusion, unspecifiedM26.5Dentofacial functional abnormalitieshas subcodesM26.6Temporomandibular joint disordershas subcodesM26.7Dental alveolar anomalieshas subcodesM26.8Other dentofacial anomalieshas subcodesM26.9Dentofacial anomaly, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

CH13 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)

M26-M27 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • hemifacial atrophy or hypertrophy (Q67.4)
  • unilateral condylar hyperplasia or hypoplasia (M27.8)

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M26-M27Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27)
M26Dentofacial anomalies [including malocclusion]Not billable
M26.0Major anomalies of jaw sizeSubcodes
M26.1Anomalies of jaw-cranial base relationshipSubcodes
M26.2Anomalies of dental arch relationshipSubcodes
M26.3Anomalies of tooth position of fully erupted tooth or teethSubcodes
M26.4Malocclusion, unspecifiedBillable
M26.5Dentofacial functional abnormalitiesSubcodes
M26.6Temporomandibular joint disordersSubcodes
M26.7Dental alveolar anomaliesSubcodes
M26.8Other dentofacial anomaliesSubcodes
M26.9Dentofacial anomaly, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M26:

blockM26-M27
Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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