M27.8 Other specified diseases of jaws

Billable ICD-10-CM code, FY2026.

Applicable to

• Cherubism
• Exostosis
• Fibrous dysplasia
• Unilateral condylar hyperplasia
• Unilateral condylar hypoplasia

Excludes1 (never code together)

• jaw pain (R68.84)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 526.81 Exostosis of jaw (approximate)
• 526.89 Other specified diseases of the jaws (approximate)

Code annotations containing back-references to M27.8

Back-references to M27.8

• Type 2 Excludes: M85.0 Fibrous dysplasia (monostotic) ("fibrous dysplasia of jaw (M27.8)")

Back-references to M27

• Type 2 Excludes: K08 Other disorders of teeth and supporting structures ("disorders of jaw (M27.-)")

Diagnosis Index entries for M27.8

• Cherubism
• Deformity › palate (congenital) › acquired
• Disease, diseased › jaw › specified NEC
• Dysplasia › fibrous › jaw
• Enostosis
• Exostosis › jaw (bone)
• Fistula (cutaneous) › palate (hard)
• Hyperplasia, hyperplastic › mandible, mandibular › unilateral condylar
• Hyperplasia, hyperplastic › unilateral condylar
• Hypertrophy, hypertrophic › palate (hard)
• Hypoplasia, hypoplastic › mandible, mandibular › unilateral condylar
• Hypoplasia, hypoplastic › unilateral condylar

Nearby codes

• M27.6 Endosseous dental implant failure
• M27.61 Osseointegration failure of dental implant
• M27.62 Post-osseointegration biological failure of dental implant
• M27.63 Post-osseointegration mechanical failure of dental implant
• M27.69 Other endosseous dental implant failure
• M27.8 Other specified diseases of jaws (this code)
• M27.9 Disease of jaws, unspecified