ICD-10-CM 2027
ICD-10 code for artery hypertrophy
From the official ICD-10-CM alphabetic index entry “Hypertrophy, hypertrophic › artery”. Page updated September 29, 2026.
About coding artery hypertrophy
The ICD-10-CM code for artery hypertrophy is I77.89 (Other specified disorders of arteries and arterioles). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I77.89.
Within I77.8, choose I77.89 (Other specified disorders of arteries and arterioles) only when documentation doesn't support a more specific option: aortic ectasia (I77.81) and Antineutrophilic cytoplasmic antibody [ANCA] vasculitis (I77.82).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 299 (Peripheral Vascular Disorders with MCC, relative weight 1.5842), DRG 300 (Peripheral Vascular Disorders with CC, relative weight 1.0464) and DRG 301 (Peripheral Vascular Disorders without CC/MCC, relative weight 0.7133), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific artery hypertrophy codes (official index)
- congenital NEC Q27.8 — Other specified congenital malformations of peripheral vascular system
- digestive system Q27.8 — Other specified congenital malformations of peripheral vascular system
- lower limb Q27.8 — Other specified congenital malformations of peripheral vascular system
- specified site NEC Q27.8 — Other specified congenital malformations of peripheral vascular system
- upper limb Q27.8 — Other specified congenital malformations of peripheral vascular system
Common questions about artery hypertrophy ICD-10 codes
What is the ICD-10 code for artery hypertrophy?
- I77.89 — Other specified disorders of arteries and arterioles. More specific codes apply when the documentation supports them: Q27.8, Q27.8, Q27.8, Q27.8 and others below.
What is the ICD-10 code for congenital nec artery hypertrophy?
- Q27.8 — Other specified congenital malformations of peripheral vascular system.
Is I77.89 billable?
- Yes. I77.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I77.89 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I77.89 as a principal diagnosis.
Is I77.89 a CC or MCC?
- No. I77.89 is neither a CC nor an MCC under MS-DRG v44.0.