Z96.659 – Presence of unspecified artificial knee joint

ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Billable code

ICD-10-CM code Z96.659

Code: Z96.659 (claims format: Z96659)
Description: Presence of unspecified artificial knee joint
Billable: Yes – valid for HIPAA-covered transactions
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: Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status
Parent codes: Z96 › Z96.6 › Z96.65

Notes inherited from parent codes

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

Z96 – Presence of other functional implants

Excludes2 (not included here):

complications of internal prosthetic devices, implants and grafts (T82-T85)
fitting and adjustment of prosthetic and other devices (Z44-Z46)

Block Z77-Z99

Code also:

any follow-up examination (Z08-Z09)

Related codes in Z96.65

Frequently asked questions

What is ICD-10 code Z96.659?

Z96.659 is the ICD-10-CM code for presence of unspecified artificial knee joint, in the block Z77-Z99 (Persons with potential health hazards related to family and personal history and certain conditions influencing health status).

Is Z96.659 a billable code?

Yes. Z96.659 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Z96.659 belong to?

It belongs to category Z96 – Presence of other functional implants.

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.