M27 – Other diseases of jaws

ICD-10-CM 2027 diagnosis code · Dentofacial anomalies [including malocclusion] and other disorders of jaw

Non-billable header

ICD-10-CM code M27

Code: M27 (claims format: M27)
Description: Other diseases of jaws
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M26-M27 Dentofacial anomalies [including malocclusion] and other disorders of jaw

Billable codes under M27

M27 is a header code and cannot be used on claims. Choose the most specific code:

M27.0 – Developmental disorders of jawsBillable
M27.1 – Giant cell granuloma, centralBillable
M27.2 – Inflammatory conditions of jawsBillable
M27.3 – Alveolitis of jawsBillable
M27.4 – Other and unspecified cysts of jawHeader (more codes below)
M27.5 – Periradicular pathology associated with previous endodontic treatmentHeader (more codes below)
M27.6 – Endosseous dental implant failureHeader (more codes below)
M27.8 – Other specified diseases of jawsBillable
M27.9 – Disease of jaws, unspecifiedBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block M26-M27

Excludes1 (not coded here):

hemifacial atrophy or hypertrophy (Q67.4)
unilateral condylar hyperplasia or hypoplasia (M27.8)

Frequently asked questions

What is ICD-10 code M27?

M27 is the ICD-10-CM code for other diseases of jaws, in the block M26-M27 (Dentofacial anomalies [including malocclusion] and other disorders of jaw).

Is M27 a billable code?

No. M27 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.