ICDcodes.org
FY2027

T82.599A — Other mechanical complication of unspecified cardiac and vascular devices and implants, initial encounter

BillableUnspecifiedCC

Is T82.599A billable?

Yes, but T82.599A is an unspecified code. T82.599A is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T82.599A 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 T82.599A — the more specific alternatives are listed below.

T82.599A at a glance

CodeT82.599A
DescriptionOther mechanical complication of unspecified cardiac and vascular devices and implants, initial encounter
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027
7th character "A"initial encounter

What does the 7th character "A" mean in T82.599A?

In T82.599A, the 7th character A means initial encounter. The 7th character is required for T82.599A to be a valid, complete code.

Same condition, different episode of care — switch the 7th character:

Which MS-DRGs does T82.599A group to?

T82.599A sits in MDC 05 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.

  • 314Other Circulatory System Diagnoses with MCCmedical
  • 315Other Circulatory System Diagnoses with CCmedical
  • 316Other Circulatory System Diagnoses without CC/MCCmedical

As a secondary diagnosis, T82.599A is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is T82.599A listed in the Alphabetic Index?

The Alphabetic Index lists these routes under T82.599, the nearest indexed parent of T82.599A. Use them to find the family, then select the specific code.

  • Complication › cardiac › device, implant or graft › mechanical › obstruction (s) (from) (of)
  • Complication › cardiac › device, implant or graft › mechanical › perforation (s) (from) (of)
  • Complication › cardiac › device, implant or graft › mechanical › protrusion (s) (from) (of)
  • Complication › vascular › device or implant › mechanical › obstruction (s) (from) (of)
  • Complication › vascular › device or implant › mechanical › perforation (s) (from) (of)
  • Complication › vascular › device or implant › mechanical › protrusion (s) (from) (of)

Use additional code — inherited from Chapter 19

Report an additional code alongside T82.599A to fully describe the condition. T82.599A 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 T82.599A to fully describe the condition. T82.599A is sequenced first.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
  • code(s) to identify the specified condition resulting from the complication
  • code to identify devices involved and details of circumstances (Y62-Y82)

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of T82.599A, but a patient may have both at the same time. When documentation supports it, T82.599A and the excluded code may both be reported.

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)

Excludes2 — not included here — inherited from T80-T88

The conditions below are not part of T82.599A, but a patient may have both at the same time. When documentation supports it, T82.599A 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 T82

The conditions below are not part of T82.599A, but a patient may have both at the same time. When documentation supports it, T82.599A and the excluded code may both be reported.

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

Excludes2 — not included here — inherited from T82.5

The conditions below are not part of T82.599A, but a patient may have both at the same time. When documentation supports it, T82.599A and the excluded code may both be reported.

  • mechanical complication of epidural and subdural infusion catheter (T85.61)

How long has T82.599A existed?

T82.599A 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.