421.1 AC ENDOCARDIT IN OTH DIS

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Code Information

Diagnosis Code: 421.1

Short Description: Ac endocardit in oth dis

Long Description: Acute and subacute infective endocarditis in diseases classified elsewhere

Code Classification:

Diseases of the circulatory system (390–459)
- Other forms of heart disease (420-429)
  - 421 Acute and subacute endocarditis
    - 421.1 Ac endocardit in oth dis

This code is valid for manifestations not allowed as principal diagnosis

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 421.1 has the following ICD-9-CM references to the Index of Diseases and Injuries

Endocarditis (chronic) (indeterminate) (interstitial) (marantic) (nonbacterial thrombotic) (residual) (sclerotic) (sclerous) (senile) (valvular) 424.90
- blastomycotic 116.0 [421.1]
- due to
  - blastomycosis 116.0 [421.1]
  - Q fever 083.0 [421.1]
  - typhoid (fever) 002.0 [421.1]
- typhoid 002.0 [421.1]

Typhoid (abortive) (ambulant) (any site) (fever) (hemorrhagic) (infection) (intermittent) (malignant) (rheumatic) 002.0
- endocarditis 002.0 [421.1]

Crosswalk Information

The code 421.1 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
421.1		I39	Endocarditis and heart valve disord in dis classd elswhr

This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code	ICD-9 Description
421.0	Acute and subacute bacterial endocarditis
421.9	Acute endocarditis, unspecified

This page was last updated on: 10/1/2014

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