2027 ICD-10-CM Diagnosis Code I06.9Rheumatic aortic valve disease, unspecified

ICD-10-CM Codes›I00–I99›I05-I09›I06

ICD-10-CM I06.9
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I06.9 is a billable ICD-10-CM diagnosis code for rheumatic aortic valve disease, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 306 through 307. Coders also document this condition as aortic valve sclerosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Chronic rheumatic heart disease.

Code Identity

ICD-10-CM Code
I06.9
Billable Status
Yes — Valid for Submission
Code Describes
Rheumatic aortic valve disease, unspecified
Short Description
Rheumatic aortic valve disease, unspecified
Same as the full description in the CMS dataset.
Parent Code
I06
Rheumatic aortic valve diseases

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI05-I09Chronic rheumatic heart diseases
CategoryI06Rheumatic aortic valve diseases
This CodeI06.9Rheumatic aortic valve disease, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Aortic valve sclerosis
  • Rheumatic aortic valve sclerosis
  • Rheumatic disease of aortic valve
  • Valvular sclerosis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I06.9: its own notes plus those printed at I06 and Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Rheumatic aortic (valve) disease NOS

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From I06 Rheumatic aortic valve diseases applies to 5 codes
  • aortic valve disease not specified as rheumatic (I35.-)
  • aortic valve disease with mitral and/or tricuspid valve involvement (I08.-)
From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 codes
  • 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.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name I06.9, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming I06.9: they are not reported together with it, unless the two conditions are unrelated.

  • I01 Rheumatic fever with heart involvement
    chronic diseases of rheumatic origin (I05-I09) unless rheumatic fever is also present or there is evidence of reactivation or activity of the rheumatic process. names I05-I09, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming I06.9: its condition is not part of those codes, and both may be reported when the patient has both.

  • I35 Nonrheumatic aortic valve disorders
    aortic valve disorder specified as rheumatic (I06.-) names I06.-, which includes this code
  • I51 Complications and ill-defined descriptions of heart disease
    heart disease specified as rheumatic (I00-I09) names I00-I09, which includes this code

Code Also 1

These codes say I06.9 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • I27.22 Pulmonary hypertension due to left heart disease
    rheumatic aortic valve diseases (I06.-) names I06.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR001
Chronic rheumatic heart disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Rheumatic Aortic Valve Disease

    a disorder of the aortic valve secondary to rheumatic fever.

Patient EducationClinical

Heart Valve Diseases

Heart valve disease happens when one or more of your heart valves don't work well.

The full article covers:

  • What are heart valve diseases?
  • What are the types of heart valve diseases?
  • What causes heart valve diseases?
  • Who is more likely to develop heart valve diseases?
  • What are the symptoms of heart valve diseases?
  • What other problems can heart valve diseases cause?
  • How is heart valve disease diagnosed?
  • What are the treatments for heart valve diseases?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert I06.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
395.9 Rheum aortic dis NEC/NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About I06.9Overview

What is the ICD-10 code for rheumatic aortic valve disease, unspecified?

The ICD-10-CM code for rheumatic aortic valve disease, unspecified is I06.9 (sometimes written as I069). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is I06.9 (Rheumatic aortic valve diseases) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report rheumatic aortic valve disease, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does I06.9 group to?

When rheumatic aortic valve disease, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 306, 307, with relative weights from 0.9146 to 1.5457 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I06.9?

Under the General Equivalence Mappings, rheumatic aortic valve disease, unspecified converts to ICD-9-CM 395.9 (rheum aortic dis NEC/NOS). The mapping is approximate, so confirm the match fits the documentation.