ICD-10-CM code · FY2027

I52 Other heart disorders in diseases classified elsewhere

BillableValid for claims as a specific diagnosis code

About I52

Code: I52
Billable: Yes
Short description: Other heart disorders in diseases classified elsewhere
Block: I30-I5A Other forms of heart disease
Chapter: 9 Diseases of the circulatory system
Code set: FY2027, October 1, 2026 to September 30, 2027

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Coding notes for I52

Excludes1 Not coded here: never report these together with this code (use the code given instead).

heart disease (in):
gonococcal infection (A54.83)
meningococcal infection (A39.50)
rheumatoid arthritis (M05.31)
syphilis (A52.06)

Code first Report the underlying condition's code before this one.

underlying disease, such as:
congenital syphilis (A50.5)
mucopolysaccharidosis (E76.3)
schistosomiasis (B65.0-B65.9)

Chapter 9 notes (apply to every code in it)

Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.

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.-)

Other categories in I30-I5A

I30 Acute pericarditisHeader
I31 Other diseases of pericardiumHeader
I32 Pericarditis in diseases classified elsewhereBillable
I33 Acute and subacute endocarditisHeader
I34 Nonrheumatic mitral valve disordersHeader
I35 Nonrheumatic aortic valve disordersHeader
I36 Nonrheumatic tricuspid valve disordersHeader
I37 Nonrheumatic pulmonary valve disordersHeader
I38 Endocarditis, valve unspecifiedBillable
I39 Endocarditis and heart valve disorders in diseases classified elsewhereBillable
I40 Acute myocarditisHeader
I41 Myocarditis in diseases classified elsewhereBillable
I42 CardiomyopathyHeader
I43 Cardiomyopathy in diseases classified elsewhereBillable
I44 Atrioventricular and left bundle-branch blockHeader
I45 Other conduction disordersHeader
I46 Cardiac arrestHeader
I47 Paroxysmal tachycardiaHeader
I48 Atrial fibrillation and flutterHeader
I49 Other cardiac arrhythmiasHeader
I50 Heart failureHeader
I51 Complications and ill-defined descriptions of heart diseaseHeader
I5A Non-ischemic myocardial injury (non-traumatic)Billable

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ICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.