T85.735A Infection and inflammatory reaction due to cranial or spinal infusion catheter, initial encounter

Billable ICD-10-CM code, FY2026.

Built from T85.735 with 7th character A (initial encounter).

Applies from T85 Complications of other internal prosthetic devices, implants and grafts

Excludes2 (not included here)

• failure and rejection of transplanted organs and tissue (T86.-)

7th character note

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

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from T85.7 Infection and inflammatory reaction due to other internal prosthetic devices, implants and grafts

Use additional code

• code to identify infection

Applies from T85.735 Infection and inflammatory reaction due to cranial or spinal infusion catheter

Applicable to

• Infection and inflammatory reaction due to epidural catheter
• Infection and inflammatory reaction due to intrathecal infusion catheter
• Infection and inflammatory reaction due to subarachnoid catheter
• Infection and inflammatory reaction due to subdural catheter

Risk adjustment (HCC)

• CMS-HCC V22: HCC 176 — Complications of Specified Implanted Device or Graft
• ESRD V24: HCC 176

Code annotations containing back-references to T85.735A

Back-references to T85.7

• Type 2 Excludes: T80.2 Infections following infusion, transfusion and therapeutic injection ("infections specified as due to prosthetic devices, implants and grafts (T82.6-T82.7, T83.5-T83.6, T84.5-T84.7, T85.7)")
• Type 2 Excludes: T81.4 Infection following a procedure ("infection due to prosthetic devices, implants and grafts (T82.6-T82.7, T83.5-T83.6, T84.5-T84.7, T85.7)")

Back-references to T85

• Type 2 Excludes: T78 Adverse effects, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications occurring during or following medical procedures (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T81 Complications of procedures, not elsewhere classified ("complication of prosthetic devices, implants and grafts (T82-T85)")
• Type 2 Excludes: T88 Other complications of surgical and medical care, not elsewhere classified ("complications of devices, implants and grafts (T82-T85)")
• Type 2 Excludes: Z96 Presence of other functional implants ("complications of internal prosthetic devices, implants and grafts (T82-T85)")
• Type 1 Excludes: Z97 Presence of other devices ("complications of internal prosthetic devices, implants and grafts (T82-T85)")

Diagnosis Index entries for T85.735A

• Complication (s) (from) (of) › catheter (device) NEC › cranial infusion › infection and inflammation
• Complication (s) (from) (of) › catheter (device) NEC › epidural infusion › infection and inflammation
• Complication (s) (from) (of) › catheter (device) NEC › intrathecal infusion › infection and inflammation
• Complication (s) (from) (of) › catheter (device) NEC › spinal infusion › infection and inflammation
• Complication (s) (from) (of) › catheter (device) NEC › subarachnoid infusion › infection and inflammation
• Complication (s) (from) (of) › catheter (device) NEC › subdural infusion › infection and inflammation
• Infection, infected, infective (opportunistic) › due to or resulting from › device, implant or graft › catheter NEC › infusion NEC › cranial
• Infection, infected, infective (opportunistic) › due to or resulting from › device, implant or graft › catheter NEC › infusion NEC › intrathecal
• Infection, infected, infective (opportunistic) › due to or resulting from › device, implant or graft › catheter NEC › infusion NEC › spinal (epidural) (subdural)
• Infection, infected, infective (opportunistic) › due to or resulting from › device, implant or graft › catheter NEC › infusion NEC › subarachnoid
• Inflammation, inflamed, inflammatory (with exudation) › due to device, implant or graft › catheter › infusion › cranial
• Inflammation, inflamed, inflammatory (with exudation) › due to device, implant or graft › catheter › infusion › intrathecal
• Inflammation, inflamed, inflammatory (with exudation) › due to device, implant or graft › catheter › infusion › spinal (epidural) (subdural)
• Inflammation, inflamed, inflammatory (with exudation) › due to device, implant or graft › catheter › infusion › subarachnoid
• Sepsis (generalized) (unspecified organism) › due to device, implant or graft › catheter NEC › infusion NEC › spinal (cranial) (epidural) (intrathecal) (spinal) (subarachnoid) (subdural)

Nearby codes

• T85.734 Infection and inflammatory reaction due to implanted electronic neurostimulator, generator
• T85.734A Infection and inflammatory reaction due to implanted electronic neurostimulator, generator, initial encounter
• T85.734D Infection and inflammatory reaction due to implanted electronic neurostimulator, generator, subsequent encounter
• T85.734S Infection and inflammatory reaction due to implanted electronic neurostimulator, generator, sequela
• T85.735 Infection and inflammatory reaction due to cranial or spinal infusion catheter
• T85.735A Infection and inflammatory reaction due to cranial or spinal infusion catheter, initial encounter (this code)
• T85.735D Infection and inflammatory reaction due to cranial or spinal infusion catheter, subsequent encounter
• T85.735S Infection and inflammatory reaction due to cranial or spinal infusion catheter, sequela
• T85.738 Infection and inflammatory reaction due to other nervous system device, implant or graft
• T85.738A Infection and inflammatory reaction due to other nervous system device, implant or graft, initial encounter
• T85.738D Infection and inflammatory reaction due to other nervous system device, implant or graft, subsequent encounter