FY2027
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ICD-10 Code for Thrombophlebitis

The ICD-10-CM code for thrombophlebitis is I80.9 — Phlebitis and thrombophlebitis of unspecified site. This is the code the Alphabetic Index gives for thrombophlebitis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

BillableUnspecified

I80.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.

Which thrombophlebitis code should you use?

The Alphabetic Index lists 23 codes under Thrombophlebitis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

antepartumO22.2Not billableSuperficial thrombophlebitis in pregnancy
calf muscular veinI80.25Not billablePhlebitis and thrombophlebitis of calf muscular vein
cavernous sinusG08Intracranial and intraspinal phlebitis and thrombophlebitis
cerebralG08Intracranial and intraspinal phlebitis and thrombophlebitis
during or resulting from a procedure NECT81.72Not billableComplication of vein following a procedure, not elsewhere classified
femoral veinI80.1Not billablePhlebitis and thrombophlebitis of femoral vein
femoropopliteal veinI80.0Not billablePhlebitis and thrombophlebitis of superficial vessels of lower extremities
gastrocnemial veinI80.25Not billablePhlebitis and thrombophlebitis of calf muscular vein
hepaticI80.8Phlebitis and thrombophlebitis of other sites
idiopathic, recurrentI82.1Thrombophlebitis migrans
iliac veinI80.21Not billablePhlebitis and thrombophlebitis of iliac vein
iliofemoralI80.1Not billablePhlebitis and thrombophlebitis of femoral vein
intracranial venous sinusG08Intracranial and intraspinal phlebitis and thrombophlebitis
intraspinal venous sinuses and veinsG08Intracranial and intraspinal phlebitis and thrombophlebitis
lateral sinusG08Intracranial and intraspinal phlebitis and thrombophlebitis
longitudinal sinusG08Intracranial and intraspinal phlebitis and thrombophlebitis
migrans, migratingI82.1Thrombophlebitis migrans
peroneal veinI80.24Not billablePhlebitis and thrombophlebitis of peroneal vein
portalK75.1Phlebitis of portal vein
postoperativeT81.72Not billableComplication of vein following a procedure, not elsewhere classified
puerperal, postpartum, childbirthO87.0Superficial thrombophlebitis in the puerperium
saphenousI80.0Not billablePhlebitis and thrombophlebitis of superficial vessels of lower extremities
sinusG08Intracranial and intraspinal phlebitis and thrombophlebitis
soleal veinI80.25Not billablePhlebitis and thrombophlebitis of calf muscular vein
specified site NECI80.8Phlebitis and thrombophlebitis of other sites
tibial veinI80.23Not billablePhlebitis and thrombophlebitis of tibial vein

Thrombophlebitis antepartum

deepO22.3Not billableDeep phlebothrombosis in pregnancy
superficialO22.2Not billableSuperficial thrombophlebitis in pregnancy

Thrombophlebitis cavernous sinus

complicating pregnancyO22.5Not billableCerebral venous thrombosis in pregnancy
nonpyogenicI67.6Nonpyogenic thrombosis of intracranial venous system

Thrombophlebitis cerebral

nonpyogenicI67.6Nonpyogenic thrombosis of intracranial venous system
sequelaeG09Sequelae of inflammatory diseases of central nervous system

Thrombophlebitis intracranial venous sinus

nonpyogenicI67.6Nonpyogenic thrombosis of intracranial venous system
sequelaeG09Sequelae of inflammatory diseases of central nervous system

Thrombophlebitis intraspinal venous sinuses and veins

nonpyogenicG95.19Other vascular myelopathies

Thrombophlebitis lateral sinus

nonpyogenicI67.6Nonpyogenic thrombosis of intracranial venous system

Thrombophlebitis longitudinal sinus

nonpyogenicI67.6Nonpyogenic thrombosis of intracranial venous system

Thrombophlebitis lower extremity

deepI80.29Not billablePhlebitis and thrombophlebitis of other deep vessels of lower extremities

Thrombophlebitis pelvic

with ectopic or molar pregnancyO08.0Genital tract and pelvic infection following ectopic and molar pregnancy
following ectopic or molar pregnancyO08.0Genital tract and pelvic infection following ectopic and molar pregnancy
puerperalO87.1Deep phlebothrombosis in the puerperium

Thrombophlebitis puerperal, postpartum, childbirth

deepO87.1Deep phlebothrombosis in the puerperium
pelvicO87.1Deep phlebothrombosis in the puerperium
septicO86.81Puerperal septic thrombophlebitis
superficialO87.0Superficial thrombophlebitis in the puerperium

Thrombophlebitis sinus

nonpyogenicI67.6Nonpyogenic thrombosis of intracranial venous system

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources