2019 ICD-10-CM Diagnosis Code I71.00

Dissection of unspecified site of aorta

    2016 2017 2018 2019 Billable/Specific Code
  • I71.00 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM I71.00 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of I71.00 - other international versions of ICD-10 I71.00 may differ.
The following code(s) above I71.00 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 I71.00:
  • I00-I99
    2019 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
  • I71
    ICD-10-CM Diagnosis Code I71

    Aortic aneurysm and dissection

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Aortic aneurysm and dissection
Approximate Synonyms
  • Aortic dissection
  • Dissecting aneurysm of aorta
  • Dissection of aorta
Clinical Information
  • A progressive tear in the aorta characterized by a separation of the media layer from the outer-most layer.
ICD-10-CM I71.00 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 299 Peripheral vascular disorders with mcc
  • 300 Peripheral vascular disorders with cc
  • 301 Peripheral vascular disorders without cc/mcc

Convert I71.00 to ICD-9-CM

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

Diagnosis Index entries containing back-references to I71.00:

ICD-10-CM Codes Adjacent To I71.00
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
I71.6 Thoracoabdominal aortic aneurysm, without rupture
I71.8 Aortic aneurysm of unspecified site, ruptured

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