2027 ICD-10-CM Diagnosis Code Z44.8Encounter for fitting and adjustment of other external prosthetic devices

ICD-10-CM Codes›Z00–Z99›Z40-Z53›Z44

ICD-10-CM Z44.8
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z44.8 is a billable ICD-10-CM diagnosis code for encounter for fitting and adjustment of other external prosthetic devices. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 945 through 946. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Implant, device or graft related encounter.

Code Identity

ICD-10-CM Code
Z44.8
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for fitting and adjustment of other external prosthetic devices
Short Description
Encounter for fit/adjst of external prosthetic devices
Parent Code
Z44
Encounter for fitting and adjustment of external prosthetic device

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ40-Z53Encounters for other specific health care
CategoryZ44Encounter for fitting and adjustment of external prosthetic device
This CodeZ44.8Encounter for fitting and adjustment of other external prosthetic devices

Present on Admission (POA)Billing

Z44.8 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Encounters for other specific health care (Z40-Z53).

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z44.8: its own notes plus those printed at Z44, block Z40-Z53, and Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Z44 Encounter for fitting and adjustment of external prosthetic device applies to 26 codes
  • removal or replacement of external prosthetic device

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Z44 Encounter for fitting and adjustment of external prosthetic device applies to 26 codes
  • malfunction or other complications of device - see Alphabetical Index
  • presence of prosthetic device (Z97.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block Z40-Z53 Encounters for other specific health care applies to 164 codes
  • follow-up examination for medical surveillance after treatment (Z08-Z09)

Notes

General instructions on how these codes are used.

From Chapter 21 (Z00-Z99) Factors influencing health status and contact with health services applies to 1,425 codes
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name Z44.8, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming Z44.8: they are not reported together with it, unless the two conditions are unrelated.

  • Z09 Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
    surveillance of prosthetic and other medical devices (Z44-Z46) names Z44-Z46, which includes this code

Excludes2 5

These codes carry an Excludes2 note naming Z44.8: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block T80-T88 Complications of surgical and medical care, not elsewhere classified
    fitting and adjustment of external prosthetic device (Z44.-) names Z44.-, which includes this code
  • Z43 Encounter for attention to artificial openings
    fitting and adjustment of prosthetic and other devices (Z44-Z46) names Z44-Z46, which includes this code
  • Z48 Encounter for other postprocedural aftercare
    encounter for fitting and adjustment of prosthetic and other devices (Z44-Z46) names Z44-Z46, which includes this code
  • Z96 Presence of other functional implants
    fitting and adjustment of prosthetic and other devices (Z44-Z46) names Z44-Z46, which includes this code
  • Z97 Presence of other devices
    fitting and adjustment of prosthetic and other devices (Z44-Z46) names Z44-Z46, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC009
Implant, device or graft related encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert Z44.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V52.8 Fitting prosthesis NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z44.8Overview

Is Z44.8 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for fitting and adjustment of other external prosthetic devices on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does Z44.8 group to?

When encounter for fitting and adjustment of other external prosthetic devices is the principal diagnosis on an inpatient stay, it groups to MS-DRG 945, 946, with relative weights from 1.1046 to 1.4743 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Z44.8 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for encounter for fitting and adjustment of other external prosthetic devices on inpatient claims. The code appears in the Encounters for other specific health care (Z40-Z53) range of the CMS exempt list.

Can Z44.8 be reported with a code from Z97?

Not as a rule. The Excludes1 note at Z44, which applies to Z44.8, lists "presence of prosthetic device (Z97.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of Z44.8?

Under the General Equivalence Mappings, encounter for fitting and adjustment of other external prosthetic devices converts to ICD-9-CM V52.8 (fitting prosthesis NEC). The mapping is approximate, so confirm the match fits the documentation.