Z44 – Encounter for fitting and adjustment of external prosthetic device

ICD-10-CM 2027 diagnosis code · Encounters for other specific health care

Non-billable header

ICD-10-CM code Z44

Code: Z44 (claims format: Z44)
Description: Encounter for fitting and adjustment of external prosthetic device
Short description: Encounter for fit/adjst of external prosthetic device
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 21. Factors influencing health status and contact with health services (Z00-Z99)
Block: Z40-Z53 Encounters for other specific health care

Billable codes under Z44

Z44 is a header code and cannot be used on claims. Choose the most specific code:

Z44.0 – Encounter for fitting and adjustment of artificial armHeader (more codes below)
Z44.1 – Encounter for fitting and adjustment of artificial legHeader (more codes below)
Z44.2 – Encounter for fitting and adjustment of artificial eyeHeader (more codes below)
Z44.3 – Encounter for fitting and adjustment of external breast prosthesisHeader (more codes below)
Z44.8 – Encounter for fitting and adjustment of other external prosthetic devicesBillable
Z44.9 – Encounter for fitting and adjustment of unspecified external prosthetic deviceBillable

Notes for Z44

Includes:

removal or replacement of external prosthetic device

Excludes1 (not coded here):

malfunction or other complications of device - see Alphabetical Index
presence of prosthetic device (Z97.-)

Notes inherited from parent codes

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

Block Z40-Z53

Applicable to:

Categories Z40-Z53 are intended for use to indicate a reason for care. They may be used for patients who have already been treated for a disease or injury, but who are receiving aftercare or prophylactic care, or care to consolidate the treatment, or to deal with a residual state

Excludes2 (not included here):

follow-up examination for medical surveillance after treatment (Z08-Z09)

Frequently asked questions

What is ICD-10 code Z44?

Z44 is the ICD-10-CM code for encounter for fitting and adjustment of external prosthetic device, in the block Z40-Z53 (Encounters for other specific health care).

Is Z44 a billable code?

No. Z44 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.