I74.11

Embolism and thrombosis of thoracic aorta

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 23 never code together

I74code

Excludes2

atheroembolism (I75.-)I75.-
basilar embolism and thrombosis (I63.0-I63.2, I65.1)I63.0-I63.2 I65.1
carotid embolism and thrombosis (I63.0-I63.2, I65.2)I63.0-I63.2 I65.2
cerebral embolism and thrombosis (I63.3-I63.5, I66.-)I63.3-I63.5 I66.-
coronary embolism and thrombosis (I21-I25)I21-I25
mesenteric embolism and thrombosis (K55.0-)K55.0-
ophthalmic embolism and thrombosis (H34.-)H34.-
precerebral embolism and thrombosis NOS (I63.0-I63.2, I65.9)I63.0-I63.2 I65.9
pulmonary embolism and thrombosis (I26.-)I26.-
renal embolism and thrombosis (N28.0)N28.0
retinal embolism and thrombosis (H34.-)H34.-
septic embolism and thrombosis (I76)I76
vertebral embolism and thrombosis (I63.0-I63.2, I65.0)I63.0-I63.2 I65.0

I00-I99chapter

Excludes2

certain conditions originating in the perinatal period (P04-P96)P04-P96
certain infectious and parasitic diseases (A00-B99)A00-B99
complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
neoplasms (C00-D49)C00-D49
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
systemic connective tissue disorders (M30-M36)M30-M36
transient cerebral ischemic attacks and related syndromes (G45.-)G45.-

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 6

I74code

Includes

embolic infarction
embolic occlusion
thrombotic infarction
thrombotic occlusion

Code first

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

Index entries leading here 2

Embolism (multiple) (paradoxical) I74.9
- aorta, aortic I74.10
  - thoracic I74.11
Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) I82.90
- aorta, aortic I74.10
  - thoracic I74.11

Alongside this code 2 same parent — I74.1

I74.10 Embolism and thrombosis of unspecified parts of aorta I74.19 Embolism and thrombosis of other parts of aorta

Medications 2

216 Embolism and Thrombosis drugs 3 Intracranial Embolism and Thrombosis drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS22HCC107 CMS28HCC264 ESRD21HCC107 ESRD24HCC107

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This code

Billable: yes
Code set: FY2026
Parent: I74.1
Block: I70-I79
Siblings: 2

Present FY2024–FY2027.