I82.90 Acute embolism and thrombosis of unspecified vein

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Embolism of vein NOS
• Thrombosis (vein) NOS

Applies from I82 Other venous embolism and thrombosis

Excludes2 (not included here)

• venous embolism and thrombosis (of):
• cerebral (I63.6, I67.6)
• coronary (I21-I25)
• intracranial and intraspinal, septic or NOS (G08)
• intracranial, nonpyogenic (I67.6)
• intraspinal, nonpyogenic (G95.1)
• mesenteric (K55.0-)
• portal (I81)
• pulmonary (I26.-)

Code first

• venous embolism and thrombosis complicating:
• abortion, ectopic or molar pregnancy (O00-O07, O08.7)
• pregnancy, childbirth and the puerperium (O22.-, O87.-)

MS-DRG index

Defines the logic of DRG(s) 299-301 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 453.89 Acute venous embolism and thrombosis of other specified veins (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.

Diagnosis Index entries for I82.90

• Block, blocked › vein NOS
• Embolism (multiple) (paradoxical) › vein (acute)
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel)
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › vein (acute)

Nearby codes

• I82.819 Embolism and thrombosis of superficial veins of unspecified lower extremity
• I82.89 Embolism and thrombosis of other specified veins
• I82.890 Acute embolism and thrombosis of other specified veins
• I82.891 Chronic embolism and thrombosis of other specified veins
• I82.9 Embolism and thrombosis of unspecified vein
• I82.90 Acute embolism and thrombosis of unspecified vein (this code)
• I82.91 Chronic embolism and thrombosis of unspecified vein