2020 ICD-10-CM Diagnosis Code I71

Aortic aneurysm and dissection

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • I71 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM I71 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I71 - other international versions of ICD-10 I71 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I71. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • aortic ectasia (
    ICD-10-CM Diagnosis Code I77.81

    Aortic ectasia

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Ectasis aorta
    Type 1 Excludes
    • aortic aneurysm and dissection (I71.0-)
    I77.81-
    )
  • syphilitic aortic aneurysm (
    ICD-10-CM Diagnosis Code A52.01

    Syphilitic aneurysm of aorta

      2016 2017 2018 2019 2020 Billable/Specific Code
    A52.01
    )
  • traumatic aortic aneurysm (
    ICD-10-CM Diagnosis Code S25.09

    Other specified injury of thoracic aorta

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    S25.09
    ,
    ICD-10-CM Diagnosis Code S35.09

    Other injury of abdominal aorta

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    S35.09
    )
The following code(s) above I71 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I71:
  • I00-I99
    2020 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • 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.-)
    Diseases of the circulatory system
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to I71:
  • Type 2 Excludes: I72
    ICD-10-CM Diagnosis Code I72

    Other aneurysm

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • aneurysm (cirsoid) (false) (ruptured)
    Type 2 Excludes
    • acquired aneurysm (I77.0)
    • aneurysm (of) aorta (I71.-)
    • aneurysm (of) arteriovenous NOS (Q27.3-)
    • carotid artery dissection (I77.71)
    • cerebral (nonruptured) aneurysm (I67.1)
    • coronary aneurysm (I25.4)
    • coronary artery dissection (I25.42)
    • dissection of artery NEC (I77.79)
    • dissection of precerebral artery, congenital (nonruptured) (Q28.1)
    • heart aneurysm (I25.3)
    • iliac artery dissection (I77.72)
    • precerebral artery, congential (nonruptured) (Q28.1)
    • pulmonary artery aneurysm (I28.1)
    • renal artery dissection (I77.73)
    • retinal aneurysm (H35.0)
    • ruptured cerebral aneurysm (I60.7)
    • varicose aneurysm (I77.0)
    • vertebral artery dissection (I77.74)
ICD-10-CM Codes Adjacent To I71
I70.791 …… right leg
I70.792 …… left leg
I70.793 …… bilateral legs
I70.798 …… other extremity
I70.799 …… unspecified extremity
I70.8 Atherosclerosis of other arteries
I70.9 Other and unspecified atherosclerosis
I70.90 Unspecified atherosclerosis
I70.91 Generalized atherosclerosis
I70.92 Chronic total occlusion of artery of the extremities
I71 Aortic aneurysm and dissection
I71.0 Dissection of aorta
I71.00 Dissection of unspecified site of aorta
I71.01 Dissection of thoracic aorta
I71.02 Dissection of abdominal aorta
I71.03 Dissection of thoracoabdominal aorta
I71.1 Thoracic aortic aneurysm, ruptured
I71.2 Thoracic aortic aneurysm, without rupture
I71.3 Abdominal aortic aneurysm, ruptured
I71.4 Abdominal aortic aneurysm, without rupture
I71.5 Thoracoabdominal aortic aneurysm, ruptured

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.