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ICD-10 Code T85.9: Unspecified complication of internal prosthetic device, implant and graft

T85.9 is a billable ICD-10 diagnosis code used to classify Unspecified complication of internal prosthetic device, implant and graft in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

When is it used?

  • May be used when a clinician documents unspecified complication of internal prosthetic device, implant and graft in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
19Injury, poisoning and certain other consequences of external causes (S00-T88)
block
T07-T88Injury, poisoning and certain other consequences of external causes
block
T80-T88Complications of surgical and medical care, not elsewhere classified
category
T85Complications of other internal prosthetic devices, implants and grafts
currentT85

Official coding notes

Inclusion terms
  • Complication of internal prosthetic device, implant and graft NOS

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Emergency Medicine SpecialistOrthopedic Specialist

Related codes

T85.0Mechanical complication of ventricular intracranial (communicating) shuntcategoryT85.1Mechanical complication of implanted electronic stimulator of nervous systemcategoryT85.2Mechanical complication of intraocular lenscategoryT85.3Mechanical complication of other ocular prosthetic devices, implants and graftscategoryT85.4Mechanical complication of breast prosthesis and implantcategoryT85.5Mechanical complication of gastrointestinal prosthetic devices, implants and graftscategoryT85.6Mechanical complication of other specified internal and external prosthetic devices, implants and graftscategoryT85.7Infection and inflammatory reaction due to other internal prosthetic devices, implants and graftscategoryT85.8Other specified complications of internal prosthetic devices, implants and grafts, not elsewhere classifiedcategory

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
T85.9

Common synonyms

Unspecified complication of internal prosthetic device, implant and graft

Frequently asked questions

Code details

CodeT85.9
SystemICD10
Display nameUnspecified complication of internal prosthetic device, implant and graft
ChapterInjury, poisoning and certain other consequences of external causes (S00-T88)
BlockComplications of surgical and medical care, not elsewhere classified

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
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About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code T85.9 for Unspecified complication of internal prosthetic device, implant and graft | HealthAssure