Complications of internal orthopedic prosthetic devices, implants and grafts
In Complications of surgical and medical care, not elsewhere classified (T80-T88), chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes
357 billable codes under T84: 119 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Also applies, from Complications of surgical and medical care, not elsewhere classified (T80-T88)
These notes sit on T80-T88 and apply to every code under it, including T84.
Excludes2: not included here, code separately if applicable
- any encounters with medical care for postprocedural conditions in which no complications are present, such as:
- artificial opening status (Z93.-)
- closure of external stoma (Z43.-)
- fitting and adjustment of external prosthetic device (Z44.-)
- burns and corrosions from local applications and irradiation (T20-T32)
- complications of surgical procedures during pregnancy, childbirth and the puerperium (O00-O9A)
- mechanical complication of respirator [ventilator] (J95.850)
- poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4 or 6)
- postprocedural fever (R50.82)
- specified complications classified elsewhere, such as:
- cerebrospinal fluid leak from spinal puncture (G97.0)
- colostomy malfunction (K94.0-)
- disorders of fluid and electrolyte imbalance (E86-E87)
- functional disturbances following cardiac surgery (I97.0-I97.1)
- intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)
- ostomy complications (J95.0-, K94.-, N99.5-)
- postgastric surgery syndromes (K91.1)
- postlaminectomy syndrome NEC (M96.1)
- postmastectomy lymphedema syndrome (I97.2)
- postsurgical blind-loop syndrome (K91.2)
- ventilator associated pneumonia (J95.851)
Use additional code: add a second code for this, listed after this one
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
- Section I.C.19.g Complications of care (page 85), covers T84
Use T86 plus a code for the complication only when it affects transplanted organ function. Body system complication codes are sequenced first unless indexed to a T code, and device pain also gets G89.18 or G89.28.
Other Chapter 19 topics:
- Application of 7th Characters in Chapter 19 (page 77)
- Coding of Injuries (page 78)
- Coding of Traumatic Fractures (page 79)
- Coding of Burns and Corrosions (page 80)
- Adverse Effects, Poisoning, Underdosing and Toxic Effects (page 82)
- Adult and child abuse, neglect and other maltreatment (page 85)
Codes under T84
T84 can't be used on a claim. Pick a billable code below; grey headings group them.
- T84.0Mechanical complication of internal joint prosthesis
- T84.1Mechanical complication of internal fixation device of bones of limb
- T84.2Mechanical complication of internal fixation device of other bones
- T84.3Mechanical complication of other bone devices, implants and grafts
- T84.4Mechanical complication of other internal orthopedic devices, implants and grafts
- T84.5Infection and inflammatory reaction due to internal joint prosthesis
- T84.6Infection and inflammatory reaction due to internal fixation device
- T84.7Infection and inflammatory reaction due to other internal orthopedic prosthetic devices, implants and grafts
- T84.8Other specified complications of internal orthopedic prosthetic devices, implants and grafts
- T84.9Unspecified complication of internal orthopedic prosthetic device, implant and graft
T84 MS-DRGs
As the principal diagnosis, the billable codes under T84 group to these 13 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 559 Aftercare, Musculoskeletal System and Connective Tissue with MCC (119 of 357 codes)
- DRG 560 Aftercare, Musculoskeletal System and Connective Tissue with CC (119 of 357 codes)
- DRG 561 Aftercare, Musculoskeletal System and Connective Tissue without CC/MCC (119 of 357 codes)
- DRG 922 Other Injury, Poisoning and Toxic Effect Diagnoses with MCC (119 of 357 codes)
- DRG 923 Other Injury, Poisoning and Toxic Effect Diagnoses without MCC (119 of 357 codes)
- DRG 949 Aftercare with CC/MCC (119 of 357 codes)
- DRG 950 Aftercare without CC/MCC (119 of 357 codes)
- DRG 400 Knee Procedures with Principal Diagnosis of Infection (8 of 357 codes)
- DRG 403 Hip or Knee Procedures with Principal Diagnosis of Periprosthetic Joint Infection with MCC or Insertion of Antibiotic-eluting Bone Void Filler (4 of 357 codes)
- DRG 404 Hip or Knee Procedures with Principal Diagnosis of Periprosthetic Joint Infection without MCC (4 of 357 codes)
- DRG 456 Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with MCC (2 of 357 codes)
- DRG 457 Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with CC (2 of 357 codes)
- DRG 458 Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection without CC/MCC (2 of 357 codes)
Other codes that refer to T84
Notes on these codes point to T84.
Code history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.