2026 ICD-10-CM Diagnosis Code D86.85Sarcoid myocarditis

ICD-10-CM Codes›D50–D89›D80-D89›D86

ICD-10-CM D86.85
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D86.85 is a billable ICD-10-CM diagnosis code for sarcoid myocarditis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 196 through 198. Coders also document this condition as cardiac sarcoidosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Immunity disorders and Myocarditis and cardiomyopathy.

Code Identity

ICD-10-CM Code
D86.85
Billable Status
Yes — Valid for Submission
Code Describes
Sarcoid myocarditis
Short Description
Sarcoid myocarditis
Same as the full description in the CMS dataset.
Parent Code
D86.8
Sarcoidosis of other sites

Code Classification

ChapterD50–D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
SectionD80-D89Certain disorders involving the immune mechanism
CategoryD86Sarcoidosis
This CodeD86.85Sarcoid myocarditis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cardiac sarcoidosis
  • Sarcoid heart muscle disease

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cardiomyopathy(familial) (idiopathic)
      • in
        • sarcoidosis
    • Myocarditis(with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile)
      • in (due to)
        • sarcoidosis
    • Sarcoid
      • myocarditis

Clinical ClassificationClinical

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

CCSR BLD008
Immunity disorders
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR CIR005
Myocarditis and cardiomyopathy
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Cardiac Sarcoidosis

    sarcoidosis affecting the tissues of the heart.

Patient EducationClinical

Cardiomyopathy

Cardiomyopathy is the name for diseases of the heart muscle. These diseases enlarge your heart muscle or make it thicker and more rigid than normal. In rare cases, scar tissue replaces the muscle tissue.

Read the full article at MedlinePlus

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

Convert D86.85 to ICD-9-CMHistory

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

ICD-9-CM
135 Sarcoidosis
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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D86.85Overview

Is D86.85 (Sarcoidosis of other sites) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report sarcoid myocarditis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D86.85 group to?

When sarcoid myocarditis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 196, 197, 198, with relative weights from 0.7162 to 1.8872 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D86.85?

Under the General Equivalence Mappings, sarcoid myocarditis converts to ICD-9-CM 135 (sarcoidosis). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.