M27.8
Billable

Other specified diseases of jaws

Billable / Specific Code

What is Other specified diseases of jaws?

ICD-10-CM M27.8 is the diagnosis code for Other specified diseases of jaws. This code falls under the section "Dentofacial anomalies [including malocclusion] and other disorders of jaw" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for M27.8

✅ This Code Includes

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

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as M27.8. They are mutually exclusive:

  • jaw pain (R68.84)

ICD-10-CM Code Hierarchy

Understanding where M27.8 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is M27.8 a billable ICD-10-CM code?

Yes, M27.8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does M27.8 mean?

M27.8 is the ICD-10-CM diagnosis code for "Other specified diseases of jaws". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of M27.8?

The parent code of M27.8 is M27 ("Other diseases of jaws"). M27.8 provides a more specific classification within this category.

What section is M27.8 in?

M27.8 is located in Section M26-M27 — "Dentofacial anomalies [including malocclusion] and other disorders of jaw" within Chapter 13 of the ICD-10-CM Tabular List.

When should I use M27.8?

Use M27.8 when the patients documented diagnosis matches "Other specified diseases of jaws" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Other specified diseases of jaws?

The ICD-10-CM code for Other specified diseases of jaws is M27.8.

Can M27.8 be used for primary diagnosis?

Yes, M27.8 can be used as a primary diagnosis code since it is billable and specific.

What chapter is M27.8 in?

M27.8 is in Chapter 13 of the ICD-10-CM Tabular List.

What conditions are excluded from M27.8?

Type 1 Excludes for M27.8 include: jaw pain (R68.84).

Is M27.8 valid for 2026?

Yes, M27.8 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM27.69Other endosseous dental implant failureNext →M27.9Disease of jaws, unspecified
Code Details
M27.8
Other specified diseases of jaws
Billable / Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M26-M27 — Dentofacial anomalies [including malocclusion] and other disorders of jaw
2026 ICD-10-CM