M27

Non-billable

Other diseases of jaws

M27 is the ICD-10-CM code for Other diseases of jaws. It is a non-billable category code — use a more specific child code such as M27.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
9
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

Your jaw is a set of bones that holds your teeth. It includes: The maxilla, which is the upper part of your jaw. It holds your top teeth in place and doesn't move. It also supports the muscles involved in chewing and facial expressions. The mandible, which is the lower part of your jaw. You move it when you talk or chew. It also holds your lower teeth in place. The temporomandibular joints (TMJs), which are two…

Read more about Jaw Injuries and Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code M27?
M27 is the ICD-10-CM code for "Other diseases of jaws". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M27 a billable code?
No — M27 is a non-billable header code. Use a more specific child code (such as M27.0) for billing.
What are the subcodes of M27?
M27 has 9 more specific child codes, including M27.0, M27.1, M27.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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