ICDcodes.org
FY2027

I71.8 — Aortic aneurysm of unspecified site, ruptured

BillableUnspecifiedMCC

Is I71.8 billable?

Yes, but I71.8 is an unspecified code. I71.8 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, I71.8 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting I71.8 — the more specific alternatives are listed below.

I71.8 at a glance

CodeI71.8
DescriptionAortic aneurysm of unspecified site, ruptured
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does I71.8 group to?

I71.8 sits in MDC 05 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 299Peripheral Vascular Disorders with MCCmedical
  • 300Peripheral Vascular Disorders with CCmedical
  • 301Peripheral Vascular Disorders without CC/MCCmedical

As a secondary diagnosis, I71.8 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.

How is I71.8 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to I71.8. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Rupture, ruptured › aorta, aortic
  • Aneurysm › aorta, aortic › ruptured (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)
  • Aneurysm › cylindroid › ruptured (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)
  • Rupture, ruptured › aorta, aortic › descending
  • Aneurysm › aorta, aortic › arteriosclerotic › ruptured (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)
  • Aneurysm › aorta, aortic › descending › ruptured (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)

Inclusion terms

Alternative wording in documentation that is classified to I71.8.

  • Rupture of aorta NOS

Code first — inherited from I71

The underlying condition below must be sequenced before I71.8. I71.8 describes a manifestation and cannot be the principal or first-listed diagnosis.

  • , if applicable:
  • syphilitic aortic aneurysm (A52.01)
  • traumatic aortic aneurysm (S25.09, S35.09)

Excludes2 — not included here — inherited from Chapter 9

The conditions below are not part of I71.8, but a patient may have both at the same time. When documentation supports it, I71.8 and the excluded code may both be reported.

  • 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.-)

How long has I71.8 existed?

I71.8 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to I71.8?

What other codes are in the I71 family? (8)