ICD-10 Diagnosis Code Z46.4

Encounter for fitting and adjustment of orthodontic device

Diagnosis Code Z46.4

ICD-10: Z46.4
Short Description: Encounter for fitting and adjustment of orthodontic device
Long Description: Encounter for fitting and adjustment of orthodontic device
This is the 2018 version of the ICD-10-CM diagnosis code Z46.4

Valid for Submission
The code Z46.4 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Factors influencing health status and contact with health services (Z00–Z99)
    • Encounters for other specific health care (Z40-Z53)
      • Encounter for fitting and adjustment of other devices (Z46)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Unacceptable principal diagnosis Additional informationCallout TooltipUnacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual’s health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Z46.4 is exempt from POA reporting.

  • Requires fixed orthodontic appliance
  • Requires functional orthodontic appliance
  • Requires hard occlusal appliance
  • Requires lower fixed orthodontic appliance
  • Requires lower orthodontic retainer
  • Requires lower removable orthodontic appliance
  • Requires orthodontic retainer
  • Requires removable orthodontic appliance
  • Requires soft occlusal appliance
  • Requires upper fixed orthodontic appliance
  • Requires upper orthodontic retainer
  • Requires upper removable orthodontic appliance

Information for Patients


Also called: Braces

Some people have naturally straight teeth that fit together. But if you have problems with your bite or the spacing of your teeth, you may need orthodontic care. Orthodontia is the branch of dentistry that deals with abnormalities of the teeth and jaw.

Orthodontic care involves the use of devices, such as braces, to

  • Straighten teeth
  • Correct problems with bite
  • Close gaps between teeth
  • Align lips and teeth properly

Most people who receive orthodontic care are kids, but adults get braces, too. In young children, orthodontic treatment may guide proper jaw growth. This can help permanent teeth to come in properly. Straight permanent teeth can help prevent tooth problems later on.

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