ICD-10-CM Code M27.2

Inflammatory conditions of jaws

Version 2020 Billable Code

Valid for Submission

M27.2 is a billable code used to specify a medical diagnosis of inflammatory conditions of jaws. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M27.2 might also be used to specify conditions or terms like abscess of facial bone, abscess of hard palate, abscess of jaw, abscess of mandible, abscess of maxilla, abscess of palate, etc

Short Description:Inflammatory conditions of jaws
Long Description:Inflammatory conditions of jaws

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code M27.2:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Osteitis of jaw(s)
  • Osteomyelitis (neonatal) jaw(s)
  • Osteoradionecrosis jaw(s)
  • Periostitis jaw(s)
  • Sequestrum of jaw bone

Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • osteonecrosis of jaw due to drug M87.180

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M27.2 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abscess of facial bone
  • Abscess of hard palate
  • Abscess of jaw
  • Abscess of mandible
  • Abscess of maxilla
  • Abscess of palate
  • Acute nonsuppurative osteitis of jaw
  • Acute osteitis of jaw
  • Acute osteomyelitis of facial bone
  • Acute osteomyelitis of jaw
  • Acute osteomyelitis of mandible
  • Acute osteomyelitis of maxilla
  • Acute periostitis of jaw
  • Alveolitis of jaw
  • Chronic abscess of jaw
  • Chronic abscess of mandible
  • Chronic abscess of maxilla
  • Chronic nonsuppurative osteitis of jaw
  • Chronic ossifying alveolar periostitis
  • Chronic osteitis of jaw
  • Chronic osteomyelitis of facial bone
  • Chronic osteomyelitis of jaw
  • Chronic osteomyelitis of mandible
  • Chronic osteomyelitis of maxilla
  • Chronic periostitis of jaw
  • Dental sequestrum
  • Disorder of hematopoietic system in newborn
  • Giant cell hyaline angiopathy
  • Infection of tooth socket
  • Inflammation of ligament
  • Inflammation of stylomandibular ligament
  • Inflammatory disorder of jaw region
  • Necrosis of hard palate
  • Neonatal osteomyelitis of jaw
  • Nonsuppurative osteitis of jaw
  • Odontogenic infection of jaw
  • Osteomyelitis of jaw
  • Osteomyelitis of mandible
  • Osteomyelitis of maxilla
  • Osteoradionecrosis
  • Osteoradionecrosis of bone of skull
  • Osteoradionecrosis of facial bones
  • Osteoradionecrosis of jaw
  • Osteoradionecrosis of the mandible
  • Osteoradionecrosis of the maxilla
  • Periostitis of jaw
  • Residual osteitis
  • Sequestrum of bone of skull
  • Sequestrum of facial bones
  • Sequestrum of jaw bone
  • Sequestrum of the mandible
  • Sequestrum of the maxilla
  • Spontaneous lingual mandibular sequestrum
  • Suppurative osteomyelitis of jaw
  • Suppurative periostitis of jaw

Convert M27.2 to ICD-9

  • 526.4 - Inflammation of jaw (Approximate Flag)
  • 526.89 - Jaw disease NEC (Approximate Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27)
      • Other diseases of jaws (M27)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Jaw Injuries and Disorders

Your jaw is a set of bones that holds your teeth. It consists of two main parts. The upper part is the maxilla. It doesn't move. The moveable lower part is called the mandible. You move it when you talk or chew. The two halves of the mandible meet at your chin. The joint where the mandible meets your skull is the temporomandibular joint.

Jaw problems include

  • Fractures
  • Dislocations
  • Temporomandibular joint dysfunction
  • Osteonecrosis, which happens when your bones lose their blood supply
  • Cancers

Treatment of jaw problems depends on the cause.

[Learn More]