T85.890A — Other specified complication of nervous system prosthetic devices, implants and grafts, initial encounter
Is T85.890A billable?
Yes, but T85.890A is an unspecified code. T85.890A is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T85.890A 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 T85.890A — the more specific alternatives are listed below.
More specific alternatives
- T85.01XABreakdown (mechanical) of ventricular intracranial (communicating) shunt, initial encounter
- T85.110ABreakdown (mechanical) of implanted electronic neurostimulator of brain electrode (lead), initial encounter
- T85.21XABreakdown (mechanical) of intraocular lens, initial encounter
- T85.310ABreakdown (mechanical) of prosthetic orbit of right eye, initial encounter
- T85.41XABreakdown (mechanical) of breast prosthesis and implant, initial encounter
- T85.510ABreakdown (mechanical) of bile duct prosthesis, initial encounter
- T85.71XAInfection and inflammatory reaction due to peritoneal dialysis catheter, initial encounter
T85.890A at a glance
| Code | T85.890A |
|---|---|
| Description | Other specified complication of nervous system prosthetic devices, implants and grafts, 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 T85.890A?
In T85.890A, the 7th character A means initial encounter. The 7th character is required for T85.890A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T85.890A group to?
T85.890A sits in MDC 01 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.
- 091Other Disorders of Nervous System with MCCmedical
- 092Other Disorders of Nervous System with CCmedical
- 093Other Disorders of Nervous System without CC/MCCmedical
As a secondary diagnosis, T85.890A is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is T85.890A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T85.890, the nearest indexed parent of T85.890A. Use them to find the family, then select the specific code.
- Complication › ventricular › specified type NEC (s) (from) (of)
- Erosion › subcutaneous device pocket › nervous system prosthetic device, implant, or graft
- Breakdown › device, graft or implant › subcutaneous device pocket › nervous system prosthetic device, implant, or graft
- Complication › catheterNEC › epidural infusion › specified type NEC (s) (from) (of)
- Complication › catheterNEC › subdural infusion › specified type NEC (s) (from) (of)
- Complication › electronic stimulator device › brain › specified type NEC (s) (from) (of)
- Complication › electronic stimulator device › nervous system › specified type NEC (s) (from) (of)
- Complication › electronic stimulator device › peripheral nerve › specified type NEC (s) (from) (of)
Use additional code — inherited from Chapter 19
Report an additional code alongside T85.890A to fully describe the condition. T85.890A 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 T85.890A to fully describe the condition. T85.890A is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T85.890A, but a patient may have both at the same time. When documentation supports it, T85.890A and the excluded code may both be reported.
Excludes2 — not included here — inherited from T80-T88
The conditions below are not part of T85.890A, but a patient may have both at the same time. When documentation supports it, T85.890A 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 T85
The conditions below are not part of T85.890A, but a patient may have both at the same time. When documentation supports it, T85.890A and the excluded code may both be reported.
- failure and rejection of transplanted organs and tissue (T86.-)
How long has T85.890A existed?
T85.890A first appears in FY2018 (FY2017 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.