2023 ICD-10-CM Diagnosis Code I71

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Aortic aneurysm and dissection

    2016 2017 2018 2019 2020 2021 2022 2023 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 2023 edition of ICD-10-CM I71 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of I71 - other international versions of ICD-10 I71 may differ.
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • , if applicable:
  • syphilitic aortic aneurysm (
    ICD-10-CM Diagnosis Code A52.01

    Syphilitic aneurysm of aorta

      2016 2017 2018 2019 2020 2021 2022 2023 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 2021 2022 2023 Non-Billable/Non-Specific Code
    S25.09
    ,
    ICD-10-CM Diagnosis Code S35.09

    Other injury of abdominal aorta

      2016 2017 2018 2019 2020 2021 2022 2023 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
    2023 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to I71:
  • Type 1 Excludes: I77.81
    ICD-10-CM Diagnosis Code I77.81

    Aortic ectasia

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    • Ectasis aorta
    Type 1 Excludes
    • aortic aneurysm and dissection (I71.-)
  • Type 2 Excludes: I72
    ICD-10-CM Diagnosis Code I72

    Other aneurysm

      2016 2017 2018 2019 2020 2021 2022 2023 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
I71.010 Dissection of ascending aorta
I71.011 Dissection of aortic arch
I71.012 Dissection of descending thoracic aorta
I71.019 …… unspecified
I71.02 Dissection of abdominal aorta
I71.03 Dissection of thoracoabdominal aorta
I71.1 Thoracic aortic aneurysm, ruptured

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