T82.856A — Stenosis of peripheral vascular stent, initial encounter

BillableCC

Is T82.856A billable?

Yes — T82.856A is billable for FY2027. T82.856A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T82.856A may be submitted for encounters from October 1, 2026 through September 30, 2027.

T82.856A at a glance

Code	T82.856A
Description	Stenosis of peripheral vascular stent, 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 T82.856A?

In T82.856A, the 7th character A means initial encounter. The 7th character is required for T82.856A to be a valid, complete code.

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

Which MS-DRGs does T82.856A group to?

T82.856A 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, T82.856A is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is T82.856A listed in the Alphabetic Index?

The Alphabetic Index lists these routes under T82.856, the nearest indexed parent of T82.856A. Use them to find the family, then select the specific code.

Stenosis, stenotic › artery NEC › stent › peripheral (cicatricial)
Restenosis › stent › vascular › in stent › peripheral vessel
Stenosis, stenotic › stent › vascular › in stent › peripheral vessel (cicatricial)
Restenosis › stent › vascular › end stent › within the stent › peripheral
Stenosis, stenotic › stent › vascular › end stent › within the stent › peripheral (cicatricial)

Inclusion terms

Alternative wording in documentation that is classified to T82.856A.

In-stent stenosis (restenosis) of peripheral vascular stent
Restenosis of peripheral vascular stent

Use additional code — inherited from Chapter 19

Report an additional code alongside T82.856A to fully describe the condition. T82.856A 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 T82.856A to fully describe the condition. T82.856A 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 T82.856A, but a patient may have both at the same time. When documentation supports it, T82.856A 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 T82.856A, but a patient may have both at the same time. When documentation supports it, T82.856A 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 T82.856A, but a patient may have both at the same time. When documentation supports it, T82.856A and the excluded code may both be reported.

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

How long has T82.856A existed?

T82.856A 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.