I82.90 — Acute embolism and thrombosis of unspecified vein
Is I82.90 billable?
Yes, but I82.90 will trip a Medicare edit. I82.90 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, CMS lists I82.90 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.
More specific alternatives
I82.90 at a glance
| Code | I82.90 |
|---|---|
| Description | Acute embolism and thrombosis of unspecified vein |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to I82.90?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name I82.90 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 I82.90 group to?
I82.90 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, I82.90 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is I82.90 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to I82.90. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel)
- Block, blocked › vein NOS
- Embolism › vein (multiple) (paradoxical)
- Thrombosis, thrombotic › vein (bland) (multiple) (progressive) (silent) (vessel)
Inclusion terms
Alternative wording in documentation that is classified to I82.90.
- Embolism of vein NOS
- Thrombosis (vein) NOS
Code first — inherited from I82
The underlying condition below must be sequenced before I82.90. I82.90 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I82.90, but a patient may have both at the same time. When documentation supports it, I82.90 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 I82.90, but a patient may have both at the same time. When documentation supports it, I82.90 and the excluded code may both be reported.
How long has I82.90 existed?
I82.90 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.