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Dx

ICD-10-CM 2027

ICD-10 code for embolism

I74.9

Embolism and thrombosis of unspecified artery

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Embolism (multiple) (paradoxical)”. Page updated September 29, 2026.

About coding embolism

The ICD-10-CM code for embolism is I74.9 (Embolism and thrombosis of unspecified artery). The official index lists 230+ more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I74.9.

Within I74, choose I74.9 (unspecified artery) only when documentation doesn't support a more specific option: abdominal aorta (I74.0), other and unspecified parts of aorta (I74.1), arteries of the upper extremities (I74.2), arteries of the lower extremities (I74.3), arteries of extremities, unspecified (I74.4), iliac artery (I74.5) and other arteries (I74.8).

Code first: embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) and embolism and thrombosis complicating pregnancy, childbirth and the puerperium (O88.-).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

More specific embolism codes (official index)

  • air (any site) (traumatic) T79.0 — Air embolism (traumatic)
  • following
  • abortion
  • ectopic pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • infusion, therapeutic injection or transfusion T80.0 — Air embolism following infusion, transfusion and therapeutic injection
  • molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • procedure NEC
  • artery T81.719 — Complication of unspecified artery following a procedure, not elsewhere classified
  • mesenteric T81.710 — Complication of mesenteric artery following a procedure, not elsewhere classified
  • renal T81.711 — Complication of renal artery following a procedure, not elsewhere classified
  • specified NEC T81.718 — Complication of other artery following a procedure, not elsewhere classified
  • vein T81.72 — Complication of vein following a procedure, not elsewhere classified
  • in pregnancy, childbirth or puerperium
  • amniotic fluid (pulmonary)
  • following
  • abortion
  • ectopic pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • aorta, aortic I74.10 — Embolism and thrombosis of unspecified parts of aorta
  • abdominal I74.09 — Other arterial embolism and thrombosis of abdominal aorta
  • saddle I74.01 — Saddle embolus of abdominal aorta
  • bifurcation I74.09 — Other arterial embolism and thrombosis of abdominal aorta
  • saddle I74.01 — Saddle embolus of abdominal aorta
  • thoracic I74.11 — Embolism and thrombosis of thoracic aorta
  • artery I74.9 — Embolism and thrombosis of unspecified artery
  • auditory, internal I65.8 — Occlusion and stenosis of other precerebral arteries
  • basilar
  • carotid (common) (internal)
  • cerebellar (anterior inferior) (posterior inferior) (superior) I66.3 — Occlusion and stenosis of cerebellar arteries
  • cerebral
  • choroidal (anterior) I65.8 — Occlusion and stenosis of other precerebral arteries
  • communicating posterior I65.8 — Occlusion and stenosis of other precerebral arteries
  • coronary
  • not resulting in infarction I24.0 — Acute coronary thrombosis not resulting in myocardial infarction
  • extremity I74.4 — Embolism and thrombosis of arteries of extremities, unspecified
  • lower I74.3 — Embolism and thrombosis of arteries of the lower extremities
  • upper I74.2 — Embolism and thrombosis of arteries of the upper extremities
  • hypophyseal I65.8 — Occlusion and stenosis of other precerebral arteries
  • iliac I74.5 — Embolism and thrombosis of iliac artery
  • limb I74.4 — Embolism and thrombosis of arteries of extremities, unspecified
  • lower I74.3 — Embolism and thrombosis of arteries of the lower extremities
  • upper I74.2 — Embolism and thrombosis of arteries of the upper extremities
  • mesenteric (with gangrene) K55.059 — Acute (reversible) ischemia of intestine, part and extent unspecified
  • ophthalmic
  • peripheral I74.4 — Embolism and thrombosis of arteries of extremities, unspecified
  • pontine I65.8 — Occlusion and stenosis of other precerebral arteries
  • precerebral
  • pulmonary
  • renal N28.0 — Ischemia and infarction of kidney
  • retinal
  • septic I76 — Septic arterial embolism
  • specified NEC I74.8 — Embolism and thrombosis of other arteries
  • vertebral
  • basilar (artery) I65.1 — Occlusion and stenosis of basilar artery
  • blood clot
  • following
  • abortion
  • ectopic or molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • in pregnancy, childbirth or puerperium
  • brain
  • following
  • abortion
  • ectopic or molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • puerperal, postpartum, childbirth
  • capillary I78.8 — Other diseases of capillaries
  • cardiac
  • not resulting in infarction I51.3 — Intracardiac thrombosis, not elsewhere classified
  • carotid (artery) (common) (internal)
  • cavernous sinus (venous)
  • cement
  • pulmonary artery I26.95 — Cement embolism of pulmonary artery without acute cor pulmonale
  • with acute cor pulmonale I26.03 — Cement embolism of pulmonary artery with acute cor pulmonale
  • cerebral
  • cholesterol
  • coronary (artery or vein) (systemic)
  • due to device, implant or graft
  • arterial graft NEC T82.818 — Embolism due to vascular prosthetic devices, implants and grafts
  • breast (implant) T85.818 — Embolism due to other internal prosthetic devices, implants and grafts
  • catheter NEC T85.818 — Embolism due to other internal prosthetic devices, implants and grafts
  • dialysis (renal) T82.818 — Embolism due to vascular prosthetic devices, implants and grafts
  • intraperitoneal T85.818 — Embolism due to other internal prosthetic devices, implants and grafts
  • infusion NEC T82.818 — Embolism due to vascular prosthetic devices, implants and grafts
  • spinal (epidural) (subdural) T85.810 — Embolism due to nervous system prosthetic devices, implants and grafts
  • urinary (indwelling) T83.81 — Embolism due to genitourinary prosthetic devices, implants and grafts
  • electronic (electrode) (pulse generator) (stimulator)
  • bone T84.81 — Embolism due to internal orthopedic prosthetic devices, implants and grafts
  • cardiac T82.817 — Embolism due to cardiac prosthetic devices, implants and grafts
  • nervous system (brain) (peripheral nerve) (spinal) T85.810 — Embolism due to nervous system prosthetic devices, implants and grafts
  • urinary T83.81 — Embolism due to genitourinary prosthetic devices, implants and grafts
  • fixation, internal (orthopedic) NEC T84.81 — Embolism due to internal orthopedic prosthetic devices, implants and grafts
  • gastrointestinal (bile duct) (esophagus) T85.818 — Embolism due to other internal prosthetic devices, implants and grafts
  • genital NEC T83.81 — Embolism due to genitourinary prosthetic devices, implants and grafts
  • heart (graft) (valve) T82.817 — Embolism due to cardiac prosthetic devices, implants and grafts
  • joint prosthesis T84.81 — Embolism due to internal orthopedic prosthetic devices, implants and grafts
  • ocular (corneal graft) (orbital implant) T85.818 — Embolism due to other internal prosthetic devices, implants and grafts
  • orthopedic (bone graft) NEC T86.838 — Other complications of bone graft
  • specified NEC T85.818 — Embolism due to other internal prosthetic devices, implants and grafts
  • urinary (graft) NEC T83.81 — Embolism due to genitourinary prosthetic devices, implants and grafts
  • vascular NEC T82.818 — Embolism due to vascular prosthetic devices, implants and grafts
  • ventricular intracranial shunt T85.810 — Embolism due to nervous system prosthetic devices, implants and grafts
  • extremities
  • lower
  • arterial I74.3 — Embolism and thrombosis of arteries of the lower extremities
  • upper I74.2 — Embolism and thrombosis of arteries of the upper extremities
  • eye H34.9 — Unspecified retinal vascular occlusion
  • fat (cerebral) (pulmonary) (systemic) T79.1 — Fat embolism (traumatic)
  • complicating delivery
  • following
  • abortion
  • ectopic or molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • pulmonary artery I26.96 — Fat embolism of pulmonary artery without acute cor pulmonale
  • with acute cor pulmonale I26.04 — Fat embolism of pulmonary artery with acute cor pulmonale
  • following
  • abortion
  • ectopic or molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • infusion, therapeutic injection or transfusion
  • air T80.0 — Air embolism following infusion, transfusion and therapeutic injection
  • heart (fatty)
  • not resulting in infarction I51.3 — Intracardiac thrombosis, not elsewhere classified
  • hepatic (vein) I82.0 — Budd-Chiari syndrome
  • in pregnancy, childbirth or puerperium
  • intestine (artery) (vein) (with gangrene) K55.039 — Acute (reversible) ischemia of large intestine, extent unspecified
  • intracranial
  • venous sinus (any) G08 — Intracranial and intraspinal phlebitis and thrombophlebitis
  • nonpyogenic I67.6 — Nonpyogenic thrombosis of intracranial venous system
  • intraspinal venous sinuses or veins G08 — Intracranial and intraspinal phlebitis and thrombophlebitis
  • nonpyogenic G95.19 — Other vascular myelopathies
  • kidney (artery) N28.0 — Ischemia and infarction of kidney
  • lateral sinus (venous)
  • leg
  • arterial I74.3 — Embolism and thrombosis of arteries of the lower extremities
  • longitudinal sinus (venous)
  • lung (massive)
  • meninges I66.8 — Occlusion and stenosis of other cerebral arteries
  • mesenteric (artery) (vein) (with gangrene) K55.059 — Acute (reversible) ischemia of intestine, part and extent unspecified
  • obstetric (in) (pulmonary)
  • childbirth O88.22 — Thromboembolism in childbirth
  • air O88.02 — Air embolism in childbirth
  • amniotic fluid O88.12 — Amniotic fluid embolism in childbirth
  • blood clot O88.22 — Thromboembolism in childbirth
  • fat O88.82 — Other embolism in childbirth
  • pyemic O88.32 — Pyemic and septic embolism in childbirth
  • septic O88.32 — Pyemic and septic embolism in childbirth
  • specified type NEC O88.82 — Other embolism in childbirth
  • pregnancy O88.21 — Thromboembolism in pregnancy
  • air O88.01 — Obstetric air embolism in pregnancy
  • amniotic fluid O88.11 — Amniotic fluid embolism in pregnancy
  • blood clot O88.21 — Thromboembolism in pregnancy
  • fat O88.81 — Other embolism in pregnancy
  • pyemic O88.31 — Pyemic and septic embolism in pregnancy
  • septic O88.31 — Pyemic and septic embolism in pregnancy
  • specified type NEC O88.81 — Other embolism in pregnancy
  • puerperal O88.23 — Thromboembolism in the puerperium
  • air O88.03 — Air embolism in the puerperium
  • amniotic fluid O88.13 — Amniotic fluid embolism in the puerperium
  • blood clot O88.23 — Thromboembolism in the puerperium
  • fat O88.83 — Other embolism in the puerperium
  • pyemic O88.33 — Pyemic and septic embolism in the puerperium
  • septic O88.33 — Pyemic and septic embolism in the puerperium
  • specified type NEC O88.83 — Other embolism in the puerperium
  • ophthalmic
  • penis N48.81 — Thrombosis of superficial vein of penis
  • peripheral artery NOS I74.4 — Embolism and thrombosis of arteries of extremities, unspecified
  • pituitary E23.6 — Other disorders of pituitary gland
  • popliteal (artery) I74.3 — Embolism and thrombosis of arteries of the lower extremities
  • portal (vein) I81 — Portal vein thrombosis
  • postoperative, postprocedural
  • artery T81.719 — Complication of unspecified artery following a procedure, not elsewhere classified
  • mesenteric T81.710 — Complication of mesenteric artery following a procedure, not elsewhere classified
  • renal T81.711 — Complication of renal artery following a procedure, not elsewhere classified
  • specified NEC T81.718 — Complication of other artery following a procedure, not elsewhere classified
  • vein T81.72 — Complication of vein following a procedure, not elsewhere classified
  • precerebral artery
  • puerperal
  • pulmonary (acute) (artery) (vein) I26.99 — Other pulmonary embolism without acute cor pulmonale
  • with acute cor pulmonale I26.09 — Other pulmonary embolism with acute cor pulmonale
  • cement I26.95 — Cement embolism of pulmonary artery without acute cor pulmonale
  • with acute cor pulmonale I26.03 — Cement embolism of pulmonary artery with acute cor pulmonale
  • chronic I27.82 — Chronic pulmonary embolism
  • fat I26.96 — Fat embolism of pulmonary artery without acute cor pulmonale
  • with acute cor pulmonale I26.04 — Fat embolism of pulmonary artery with acute cor pulmonale
  • following
  • abortion
  • ectopic or molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • healed or old Z86.711 — Personal history of pulmonary embolism
  • in pregnancy, childbirth or puerperium
  • multiple subsegmental without acute cor pulmonale I26.94 — Multiple subsegmental thrombotic pulmonary emboli without acute cor pulmonale
  • personal history of Z86.711 — Personal history of pulmonary embolism
  • saddle I26.92 — Saddle embolus of pulmonary artery without acute cor pulmonale
  • with acute cor pulmonale I26.02 — Saddle embolus of pulmonary artery with acute cor pulmonale
  • septic I26.90 — Septic pulmonary embolism without acute cor pulmonale
  • with acute cor pulmonale I26.01 — Septic pulmonary embolism with acute cor pulmonale
  • single subsegmental without acute cor pulmonale I26.93 — Single subsegmental thrombotic pulmonary embolism without acute cor pulmonale
  • subsegmental NOS I26.93 — Single subsegmental thrombotic pulmonary embolism without acute cor pulmonale
  • pyemic (multiple) I76 — Septic arterial embolism
  • following
  • abortion
  • ectopic or molar pregnancy O08.2 — Embolism following ectopic and molar pregnancy
  • Hemophilus influenzae A41.3 — Sepsis due to Hemophilus influenzae
  • pneumococcal A40.3 — Sepsis due to Streptococcus pneumoniae
  • with pneumonia J13 — Pneumonia due to Streptococcus pneumoniae
  • puerperal, postpartum, childbirth (any organism)
  • specified organism NEC A41.89 — Other specified sepsis
  • staphylococcal A41.2 — Sepsis due to unspecified staphylococcus
  • streptococcal A40.9 — Streptococcal sepsis, unspecified
  • renal (artery) N28.0 — Ischemia and infarction of kidney
  • vein I82.3 — Embolism and thrombosis of renal vein
  • retina, retinal
  • saddle
  • abdominal aorta I74.01 — Saddle embolus of abdominal aorta
  • pulmonary artery I26.92 — Saddle embolus of pulmonary artery without acute cor pulmonale
  • with acute cor pulmonale I26.02 — Saddle embolus of pulmonary artery with acute cor pulmonale
  • septic (arterial) I76 — Septic arterial embolism
  • complicating abortion
  • sinus
  • soap complicating abortion
  • spinal cord G95.19 — Other vascular myelopathies
  • pyogenic origin G06.1 — Intraspinal abscess and granuloma
  • spleen, splenic (artery) I74.8 — Embolism and thrombosis of other arteries
  • thrombotic
  • specified NEC I26.99 — Other pulmonary embolism without acute cor pulmonale
  • with acute cor pulmonale I26.09 — Other pulmonary embolism with acute cor pulmonale
  • upper extremity I74.2 — Embolism and thrombosis of arteries of the upper extremities
  • vein (acute) I82.90 — Acute embolism and thrombosis of unspecified vein
  • antecubital I82.61 — Acute embolism and thrombosis of superficial veins of upper extremity
  • chronic I82.71 — Chronic embolism and thrombosis of superficial veins of upper extremity
  • axillary I82.A1 — Acute embolism and thrombosis of axillary vein
  • chronic I82.A2 — Chronic embolism and thrombosis of axillary vein
  • basilic I82.61 — Acute embolism and thrombosis of superficial veins of upper extremity
  • chronic I82.71 — Chronic embolism and thrombosis of superficial veins of upper extremity
  • brachial I82.62 — Acute embolism and thrombosis of deep veins of upper extremity
  • chronic I82.72 — Chronic embolism and thrombosis of deep veins of upper extremity
  • brachiocephalic (innominate) I82.290 — Acute embolism and thrombosis of other thoracic veins
  • chronic I82.291 — Chronic embolism and thrombosis of other thoracic veins
  • calf, muscle I82.46 — Acute embolism and thrombosis of calf muscular vein
  • chronic I82.56 — Chronic embolism and thrombosis of calf muscular vein
  • cephalic I82.61 — Acute embolism and thrombosis of superficial veins of upper extremity
  • chronic I82.71 — Chronic embolism and thrombosis of superficial veins of upper extremity
  • chronic I82.91 — Chronic embolism and thrombosis of unspecified vein
  • deep (DVT) I82.40 — Acute embolism and thrombosis of unspecified deep veins of lower extremity
  • calf I82.4Z — Acute embolism and thrombosis of unspecified deep veins of distal lower extremity
  • chronic I82.5Z — Chronic embolism and thrombosis of unspecified deep veins of distal lower extremity
  • lower leg I82.4Z — Acute embolism and thrombosis of unspecified deep veins of distal lower extremity
  • chronic I82.5Z — Chronic embolism and thrombosis of unspecified deep veins of distal lower extremity
  • thigh I82.4Y — Acute embolism and thrombosis of unspecified deep veins of proximal lower extremity
  • chronic I82.5Y — Chronic embolism and thrombosis of unspecified deep veins of proximal lower extremity
  • upper leg I82.4Y — Acute embolism and thrombosis of unspecified deep veins of proximal lower extremity
  • chronic I82.5y--
  • femoral I82.41 — Acute embolism and thrombosis of femoral vein
  • chronic I82.51 — Chronic embolism and thrombosis of femoral vein
  • gastrocnemial I82.46 — Acute embolism and thrombosis of calf muscular vein
  • chronic I82.56 — Chronic embolism and thrombosis of calf muscular vein
  • iliac (iliofemoral) I82.42 — Acute embolism and thrombosis of iliac vein
  • chronic I82.52 — Chronic embolism and thrombosis of iliac vein
  • innominate I82.290 — Acute embolism and thrombosis of other thoracic veins
  • chronic I82.291 — Chronic embolism and thrombosis of other thoracic veins
  • internal jugular I82.C1 — Acute embolism and thrombosis of internal jugular vein
  • chronic I82.C2 — Chronic embolism and thrombosis of internal jugular vein
  • lower extremity
  • deep I82.40 — Acute embolism and thrombosis of unspecified deep veins of lower extremity
  • chronic I82.50 — Chronic embolism and thrombosis of unspecified deep veins of lower extremity
  • specified NEC I82.49 — Acute embolism and thrombosis of other specified deep vein of lower extremity
  • chronic NEC I82.59 — Chronic embolism and thrombosis of other specified deep vein of lower extremity
  • distal
  • deep I82.4Z — Acute embolism and thrombosis of unspecified deep veins of distal lower extremity
  • proximal
  • deep I82.4Y — Acute embolism and thrombosis of unspecified deep veins of proximal lower extremity
  • chronic I82.5Y — Chronic embolism and thrombosis of unspecified deep veins of proximal lower extremity
  • superficial I82.81 — Embolism and thrombosis of superficial veins of lower extremities
  • peroneal I82.45 — Acute embolism and thrombosis of peroneal vein
  • chronic I82.55 — Chronic embolism and thrombosis of peroneal vein
  • popliteal I82.43 — Acute embolism and thrombosis of popliteal vein
  • chronic I82.53 — Chronic embolism and thrombosis of popliteal vein
  • radial I82.62 — Acute embolism and thrombosis of deep veins of upper extremity
  • chronic I82.72 — Chronic embolism and thrombosis of deep veins of upper extremity
  • renal I82.3 — Embolism and thrombosis of renal vein
  • saphenous (greater) (lesser) I82.81 — Embolism and thrombosis of superficial veins of lower extremities
  • soleal I82.46 — Acute embolism and thrombosis of calf muscular vein
  • chronic I82.56 — Chronic embolism and thrombosis of calf muscular vein
  • specified NEC I82.890 — Acute embolism and thrombosis of other specified veins
  • chronic NEC I82.891 — Chronic embolism and thrombosis of other specified veins
  • subclavian I82.B1 — Acute embolism and thrombosis of subclavian vein
  • chronic I82.B2 — Chronic embolism and thrombosis of subclavian vein
  • thoracic NEC I82.290 — Acute embolism and thrombosis of other thoracic veins
  • chronic I82.291 — Chronic embolism and thrombosis of other thoracic veins
  • tibial I82.44 — Acute embolism and thrombosis of tibial vein
  • chronic I82.54 — Chronic embolism and thrombosis of tibial vein
  • ulnar I82.62 — Acute embolism and thrombosis of deep veins of upper extremity
  • chronic I82.72 — Chronic embolism and thrombosis of deep veins of upper extremity
  • upper extremity I82.60 — Acute embolism and thrombosis of unspecified veins of upper extremity
  • chronic I82.70 — Chronic embolism and thrombosis of unspecified veins of upper extremity
  • deep I82.62 — Acute embolism and thrombosis of deep veins of upper extremity
  • chronic I82.72 — Chronic embolism and thrombosis of deep veins of upper extremity
  • superficial I82.61 — Acute embolism and thrombosis of superficial veins of upper extremity
  • chronic I82.71 — Chronic embolism and thrombosis of superficial veins of upper extremity
  • vena cava
  • inferior (acute) I82.220 — Acute embolism and thrombosis of inferior vena cava
  • chronic I82.221 — Chronic embolism and thrombosis of inferior vena cava
  • superior (acute) I82.210 — Acute embolism and thrombosis of superior vena cava
  • chronic I82.211 — Chronic embolism and thrombosis of superior vena cava

See all 302 entries in the alphabetic index

Common questions about embolism ICD-10 codes

What is the ICD-10 code for embolism?

I74.9 — Embolism and thrombosis of unspecified artery. More specific codes apply when the documentation supports them: T79.0, O08.2, T80.0, O08.2 and others below.

What is the ICD-10 code for air embolism?

T79.0 — Air embolism (traumatic) (header code; choose a more specific subcode).

What is the ICD-10 code for artery embolism?

I74.9 — Embolism and thrombosis of unspecified artery.

What is the ICD-10 code for basilar embolism?

I65.1 — Occlusion and stenosis of basilar artery.

What is the ICD-10 code for capillary embolism?

I78.8 — Other diseases of capillaries.

What is the ICD-10 code for eye embolism?

H34.9 — Unspecified retinal vascular occlusion.

What is the ICD-10 code for fat embolism?

T79.1 — Fat embolism (traumatic) (header code; choose a more specific subcode).

Is I74.9 billable?

Yes. I74.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I74.9 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I74.9 as a principal diagnosis.

Is I74.9 a CC or MCC?

I74.9 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.