T84.9XXA — Unspecified complication of internal orthopedic prosthetic device, implant and graft, initial encounter
Is T84.9XXA billable?
Yes, but T84.9XXA is an unspecified code. T84.9XXA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T84.9XXA is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting T84.9XXA — the more specific alternatives are listed below.
More specific alternatives
- T84.010ABroken internal right hip prosthesis, initial encounter
- T84.110ABreakdown (mechanical) of internal fixation device of right humerus, initial encounter
- T84.210ABreakdown (mechanical) of internal fixation device of bones of hand and fingers, initial encounter
- T84.310ABreakdown (mechanical) of electronic bone stimulator, initial encounter
- T84.410ABreakdown (mechanical) of muscle and tendon graft, initial encounter
- T84.50XAInfection and inflammatory reaction due to unspecified internal joint prosthesis, initial encounter
- T84.60XAInfection and inflammatory reaction due to internal fixation device of unspecified site, initial encounter
- T84.7XXAInfection and inflammatory reaction due to other internal orthopedic prosthetic devices, implants and grafts, initial encounter
T84.9XXA at a glance
| Code | T84.9XXA |
|---|---|
| Description | Unspecified complication of internal orthopedic prosthetic device, implant and graft, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in T84.9XXA?
In T84.9XXA, the 7th character A means initial encounter. The 7th character is required for T84.9XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T84.9XXA group to?
T84.9XXA sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 559Aftercare, Musculoskeletal System and Connective Tissue with MCCmedical
- 560Aftercare, Musculoskeletal System and Connective Tissue with CCmedical
- 561Aftercare, Musculoskeletal System and Connective Tissue without CC/MCCmedical
As a secondary diagnosis, T84.9XXA is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is T84.9XXA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T84.9, the nearest indexed parent of T84.9XXA. Use them to find the family, then select the specific code.
- Complication › fixation device, internal (s) (from) (of)
- Complication › joint prosthesis, internal (s) (from) (of)
- Complication › bone › device NEC (s) (from) (of)
- Complication › electronic stimulator device › bone (s) (from) (of)
- Complication › electronic stimulator device › muscle (s) (from) (of)
- Complication › graft › muscle (s) (from) (of)
- Complication › graft › tendon (s) (from) (of)
- Complication › orthopedic › device or implant (s) (from) (of)
Use additional code — inherited from Chapter 19
Report an additional code alongside T84.9XXA to fully describe the condition. T84.9XXA is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T80-T88
Report an additional code alongside T84.9XXA to fully describe the condition. T84.9XXA is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T84.9XXA, but a patient may have both at the same time. When documentation supports it, T84.9XXA and the excluded code may both be reported.
Excludes2 — not included here — inherited from T80-T88
The conditions below are not part of T84.9XXA, but a patient may have both at the same time. When documentation supports it, T84.9XXA and the excluded code may both be reported.
- 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)
Excludes2 — not included here — inherited from T84
The conditions below are not part of T84.9XXA, but a patient may have both at the same time. When documentation supports it, T84.9XXA and the excluded code may both be reported.
How long has T84.9XXA existed?
T84.9XXA has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.