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ICD-10-CM 2027 diagnosis code

I73.89Other specified peripheral vascular diseases

✓ Billable / specific

I73.89 is a valid, billable ICD-10-CM code for other specified peripheral vascular diseases. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Acroasphyxia, ICD-10 code for Acrocyanosis, ICD-10 code for Acroparesthesia, ICD-10 code for Crocq's disease.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I73.89

I73.89 is the ICD-10-CM diagnosis code for other specified peripheral vascular diseases. It belongs to category I73 (other peripheral vascular diseases), block I70-I79 (diseases of arteries, arterioles and capillaries) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I73.8, choose I73.89 (Other specified peripheral vascular diseases) only when documentation doesn't support a more specific option: Erythromelalgia (I73.81).

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.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 443.89 (other specified peripheral vascular diseases).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Acrocyanosis
  • Erythrocyanosis
  • Simple acroparesthesia [Schultze's type]
  • Vasomotor acroparesthesia [Nothnagel's type]

Notes that apply from higher levels

Instructions written at a parent level also apply to I73.89.

› From I73.8 Other specified peripheral vascular diseases
Excludes1
  • diabetic (peripheral) angiopathy (E08-E13 with .51-.52)
› From I73 Other peripheral vascular diseases
Excludes2

Broader instructions also apply from Chapter 9: Diseases of the circulatory system.

Alphabetic index entries

11 entries

Terms in the official ICD-10-CM index that lead to I73.89.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 443.89Other specified peripheral vascular diseasesapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about I73.89

Is I73.89 billable?

Yes. I73.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I73.89 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I73.89 as a principal diagnosis.

Is I73.89 a CC or MCC?

No. I73.89 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does I73.89 group to?

I73.89 is used in the MS-DRG v44.0 logic for MS-DRG 299 (Peripheral Vascular Disorders with MCC), MS-DRG 300 (Peripheral Vascular Disorders with CC) and MS-DRG 301 (Peripheral Vascular Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for I73.89?

The CMS General Equivalence Mappings map I73.89 to ICD-9-CM 443.89.