2027 ICD-10-CM Diagnosis Code Z74.09Other reduced mobility
Z74.09 is a billable ICD-10-CM diagnosis code for other reduced mobility. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified status.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z74.09.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Confined to chair
- Dependent lymphedema
- Dependent lymphedema due to impaired mobility
- Difficulty getting off toilet
- Difficulty getting on and off toilet
- Difficulty getting on to toilet
- Difficulty mobilizing in home
- Difficulty transferring from chair to toilet
- Difficulty transferring from toilet to chair
- Does not mobilize in home
- Finding related to ability to mobilize using wheelchair
- Impaired bed mobility
- Impaired mobility
- Impaired wheelchair mobility
- Mobile outside with aid
- Mobility poor
- Mobility very poor
- Needs help on stairs
- Needs walking aid in home
- Reduced mobility
- Thrombophilia due to immobilization
- Unable to mobilize in home
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z74.09: its own notes plus those printed at Z74 and Chapter 21. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Chairridden
- Reduced mobility NOS
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.
- wheelchair dependence (Z99.3)
Notes
General instructions on how these codes are used.
- 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 Z74.09, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Walking Problems
If you are like most people, you walk thousands of steps each day. You walk to do your daily activities, get around, and exercise. It's something that you usually don't think about. But for those people who have a problem with walking, daily life can be more difficult.
The full article covers:
- What are walking problems?
- What causes walking problems?
- How is the cause of a walking problem diagnosed?
- What are the treatments for walking problems?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z74.09 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z74.09Overview
What is the ICD-10 code for other reduced mobility?
The ICD-10-CM code for other reduced mobility is Z74.09 (sometimes written as Z7409). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Z74.09 (Reduced mobility) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other reduced mobility on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z74.09 group to?
On inpatient claims, other reduced mobility maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.5574. Higher weights mean higher Medicare reimbursement.
Can Z74.09 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because other reduced mobility describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
What is the ICD-9 equivalent of Z74.09?
Under the General Equivalence Mappings, other reduced mobility converts to ICD-9-CM V49.89 (conditn influ health NEC). The mapping is approximate, so confirm the match fits the documentation.
