I82.819 — Embolism and thrombosis of superficial veins of unspecified lower extremity
Is I82.819 billable?
Yes, but I82.819 will trip a Medicare edit. I82.819 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, CMS lists I82.819 under Medicare Code Editor edit 20, “Unspecified code” — meaning a code specifying laterality (right, left or bilateral) exists in the same family. On an inpatient claim this triggers the edit, because CMS holds that there are very limited circumstances in which laterality cannot be documented.
I82.819 at a glance
| Code | I82.819 |
|---|---|
| Description | Embolism and thrombosis of superficial veins of unspecified lower extremity |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to I82.819?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name I82.819 directly.
A code specifying laterality (right, left or bilateral) exists in the same family. CMS holds that there are very limited circumstances in which laterality cannot be documented.
Which MS-DRGs does I82.819 group to?
I82.819 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.
- 299Peripheral Vascular Disorders with MCCmedical
- 300Peripheral Vascular Disorders with CCmedical
- 301Peripheral Vascular Disorders without CC/MCCmedical
As a secondary diagnosis, I82.819 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is I82.819 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under I82.81, the nearest indexed parent of I82.819. Use them to find the family, then select the specific code.
- Embolism › vein › saphenous (multiple) (paradoxical)
- Thrombosis, thrombotic › vein › saphenous (bland) (multiple) (progressive) (silent) (vessel)
- Embolism › vein › lower extremity › superficial (multiple) (paradoxical)
- Thrombosis, thrombotic › vein › lower extremity › superficial (bland) (multiple) (progressive) (silent) (vessel)
Code first — inherited from I82
The underlying condition below must be sequenced before I82.819. I82.819 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from I82.8
Report an additional code alongside I82.819 to fully describe the condition. I82.819 is sequenced first.
- code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I82.819, but a patient may have both at the same time. When documentation supports it, I82.819 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Excludes2 — not included here — inherited from I82
The conditions below are not part of I82.819, but a patient may have both at the same time. When documentation supports it, I82.819 and the excluded code may both be reported.
How long has I82.819 existed?
I82.819 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2018Embolism and thrombosis of superficial veins of unspecified lower extremitiesEmbolism and thrombosis of superficial veins of unspecified lower extremity
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.