I77.810 — Thoracic aortic ectasia
Is I77.810 billable?
Yes — I77.810 is billable for FY2027. I77.810 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. I77.810 may be submitted for encounters from October 1, 2026 through September 30, 2027.
I77.810 at a glance
| Code | I77.810 |
|---|---|
| Description | Thoracic aortic ectasia |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does I77.810 group to?
I77.810 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
How is I77.810 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to I77.810. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Ectasia, ectasis › aorta › thoracic
Excludes1 — never code together — inherited from I77.81
The conditions below can never be reported together with I77.810 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- aortic aneurysm and dissection (I71.-)
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I77.810, but a patient may have both at the same time. When documentation supports it, I77.810 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.-)
Excludes2 — not included here — inherited from I77
The conditions below are not part of I77.810, but a patient may have both at the same time. When documentation supports it, I77.810 and the excluded code may both be reported.
How long has I77.810 existed?
I77.810 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.