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ICD-10-CM 2027 diagnosis code

T85.9Unspecified complication of internal prosthetic device, implant and graft

Not billable — use a more specific codeRequires 7th character

T85.9 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.Short description: Unsp complication of internal prosth dev/grft

Looking up by condition? See ICD-10 code for Ventricular shunt complication, ICD-10 code for Orbital prosthesis complication, ICD-10 code for Breast implant prosthetic complication, ICD-10 code for Intraocular lens prosthetic complication.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About T85.9

T85.9 is the ICD-10-CM diagnosis code for unspecified complication of internal prosthetic device, implant and graft. It belongs to category T85 (complications of other internal prosthetic devices, implants and grafts), block T80-T88 (complications of surgical and medical care, not elsewhere classified) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within T85, choose T85.9 (Unspecified complication of internal prosthetic device, implant and graft) only when documentation doesn't support a more specific option: mechanical complication of ventricular intracranial (communicating) shunt (T85.0), mechanical complication of implanted electronic stimulator of nervous system (T85.1), mechanical complication of intraocular lens (T85.2), mechanical complication of other ocular prosthetic devices, implants and grafts (T85.3), mechanical complication of breast prosthesis and implant (T85.4), mechanical complication of gastrointestinal prosthetic devices, implants and grafts (T85.5), mechanical complication of other specified internal and external prosthetic devices, implants and grafts (T85.6), infection and inflammatory reaction due to other internal prosthetic devices, implants and grafts (T85.7) and 1 more.

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category T85

Coding notes

Applicable toConditions and synonyms classified to this code
  • Complication of internal prosthetic device, implant and graft NOS

Notes that apply from higher levels

Instructions written at a parent level also apply to T85.9.

Alphabetic index entries

18 entries

Terms in the official ICD-10-CM index that lead to T85.9.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about T85.9

Is T85.9 billable?

No. T85.9 is a header code. Report one of its more specific subcodes instead.