ICD-10 · PDGM grouping

I30-I5A — Other forms of heart disease

Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.1.26.

OASIS-E2 v1.00.0 · ingested 2026-04-26

Codes in range

140

No clinical group

A period cannot be grouped from these.

Barred as primary

CMS rejects these in the primary position.

Where these codes group

130 of the 140 codes in I30-I5A group to MMTA - Cardiac and Circulatory. A further 10 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.

HMMTA - Cardiac and Circulatory130

Every code in I30-I5A

Descriptions are CMS’s own, abbreviated as CMS abbreviates them.

Code	Description	Clinical group	Primary position
I300	Acute nonspecific idiopathic pericarditis	H	Accepted
I301	Infective pericarditis	H	Accepted
I308	Other forms of acute pericarditis	H	Accepted
I309	Acute pericarditis, unspecified	H	Accepted
I310	Chronic adhesive pericarditis	H	Accepted
I311	Chronic constrictive pericarditis	H	Accepted
I312	Hemopericardium, not elsewhere classified	H	Accepted
I3131	Malignant pericardial effusion in diseases classd elswhr	None	Cannot group
I3139	Other pericardial effusion (noninflammatory)	H	Accepted
I314	Cardiac tamponade	None	Not accepted
I318	Other specified diseases of pericardium	H	Accepted
I319	Disease of pericardium, unspecified	H	Accepted
I32	Pericarditis in diseases classified elsewhere	None	Cannot group
I330	Acute and subacute infective endocarditis	H	Accepted
I339	Acute and subacute endocarditis, unspecified	H	Accepted
I340	Nonrheumatic mitral (valve) insufficiency	H	Accepted
I341	Nonrheumatic mitral (valve) prolapse	H	Accepted
I342	Nonrheumatic mitral (valve) stenosis	H	Accepted
I3481	Nonrheumatic mitral (valve) annulus calcification	H	Accepted
I3489	Other nonrheumatic mitral valve disorders	H	Accepted
I349	Nonrheumatic mitral valve disorder, unspecified	H	Accepted
I350	Nonrheumatic aortic (valve) stenosis	H	Accepted
I351	Nonrheumatic aortic (valve) insufficiency	H	Accepted
I352	Nonrheumatic aortic (valve) stenosis with insufficiency	H	Accepted
I358	Other nonrheumatic aortic valve disorders	H	Accepted
I359	Nonrheumatic aortic valve disorder, unspecified	H	Accepted
I360	Nonrheumatic tricuspid (valve) stenosis	H	Accepted
I361	Nonrheumatic tricuspid (valve) insufficiency	H	Accepted
I362	Nonrheumatic tricuspid (valve) stenosis with insufficiency	H	Accepted
I368	Other nonrheumatic tricuspid valve disorders	H	Accepted
I369	Nonrheumatic tricuspid valve disorder, unspecified	H	Accepted
I370	Nonrheumatic pulmonary valve stenosis	H	Accepted
I371	Nonrheumatic pulmonary valve insufficiency	H	Accepted
I372	Nonrheumatic pulmonary valve stenosis with insufficiency	H	Accepted
I378	Other nonrheumatic pulmonary valve disorders	H	Accepted
I379	Nonrheumatic pulmonary valve disorder, unspecified	H	Accepted
I38	Endocarditis, valve unspecified	H	Accepted
I39	Endocarditis and heart valve disord in dis classd elswhr	None	Cannot group
I400	Infective myocarditis	H	Accepted
I401	Isolated myocarditis	H	Accepted
I408	Other acute myocarditis	H	Accepted
I409	Acute myocarditis, unspecified	H	Accepted
I41	Myocarditis in diseases classified elsewhere	None	Cannot group
I420	Dilated cardiomyopathy	H	Accepted
I421	Obstructive hypertrophic cardiomyopathy	H	Accepted
I422	Other hypertrophic cardiomyopathy	H	Accepted
I423	Endomyocardial (eosinophilic) disease	H	Accepted
I424	Endocardial fibroelastosis	H	Accepted
I425	Other restrictive cardiomyopathy	H	Accepted
I426	Alcoholic cardiomyopathy	H	Accepted
I427	Cardiomyopathy due to drug and external agent	H	Accepted
I428	Other cardiomyopathies	H	Accepted
I429	Cardiomyopathy, unspecified	H	Accepted
I43	Cardiomyopathy in diseases classified elsewhere	None	Cannot group
I440	Atrioventricular block, first degree	H	Accepted
I441	Atrioventricular block, second degree	H	Accepted
I442	Atrioventricular block, complete	H	Accepted
I4430	Unspecified atrioventricular block	H	Accepted
I4439	Other atrioventricular block	H	Accepted
I444	Left anterior fascicular block	H	Accepted
I445	Left posterior fascicular block	H	Accepted
I4460	Unspecified fascicular block	H	Accepted
I4469	Other fascicular block	H	Accepted
I447	Left bundle-branch block, unspecified	H	Accepted
I450	Right fascicular block	H	Accepted
I4510	Unspecified right bundle-branch block	H	Accepted
I4519	Other right bundle-branch block	H	Accepted
I452	Bifascicular block	H	Accepted
I453	Trifascicular block	H	Accepted
I454	Nonspecific intraventricular block	H	Accepted
I455	Other specified heart block	H	Accepted
I456	Pre-excitation syndrome	H	Accepted
I4581	Long QT syndrome	H	Accepted
I4589	Other specified conduction disorders	H	Accepted
I459	Conduction disorder, unspecified	H	Accepted
I462	Cardiac arrest due to underlying cardiac condition	None	Not accepted
I468	Cardiac arrest due to other underlying condition	None	Not accepted
I469	Cardiac arrest, cause unspecified	H	Accepted
I470	Re-entry ventricular arrhythmia	H	Accepted
I4710	Supraventricular tachycardia, unspecified	H	Accepted
I4711	Inappropriate sinus tachycardia, so stated	H	Accepted
I4719	Other supraventricular tachycardia	H	Accepted
I4720	Ventricular tachycardia, unspecified	H	Accepted
I4721	Torsades de pointes	H	Accepted
I4729	Other ventricular tachycardia	H	Accepted
I479	Paroxysmal tachycardia, unspecified	H	Accepted
I480	Paroxysmal atrial fibrillation	H	Accepted
I4811	Longstanding persistent atrial fibrillation	H	Accepted
I4819	Other persistent atrial fibrillation	H	Accepted
I4820	Chronic atrial fibrillation, unspecified	H	Accepted
I4821	Permanent atrial fibrillation	H	Accepted
I483	Typical atrial flutter	H	Accepted
I484	Atypical atrial flutter	H	Accepted
I4891	Unspecified atrial fibrillation	H	Accepted
I4892	Unspecified atrial flutter	H	Accepted
I4901	Ventricular fibrillation	H	Accepted
I4902	Ventricular flutter	H	Accepted
I491	Atrial premature depolarization	H	Accepted
I492	Junctional premature depolarization	H	Accepted
I493	Ventricular premature depolarization	H	Accepted
I4940	Unspecified premature depolarization	H	Accepted
I4949	Other premature depolarization	H	Accepted
I495	Sick sinus syndrome	H	Accepted
I498	Other specified cardiac arrhythmias	H	Accepted
I499	Cardiac arrhythmia, unspecified	H	Accepted
I501	Left ventricular failure, unspecified	H	Accepted
I5020	Unspecified systolic (congestive) heart failure	H	Accepted
I5021	Acute systolic (congestive) heart failure	H	Accepted
I5022	Chronic systolic (congestive) heart failure	H	Accepted
I5023	Acute on chronic systolic (congestive) heart failure	H	Accepted
I5030	Unspecified diastolic (congestive) heart failure	H	Accepted
I5031	Acute diastolic (congestive) heart failure	H	Accepted
I5032	Chronic diastolic (congestive) heart failure	H	Accepted
I5033	Acute on chronic diastolic (congestive) heart failure	H	Accepted
I5040	Unsp combined systolic and diastolic (congestive) hrt fail	H	Accepted
I5041	Acute combined systolic and diastolic (congestive) hrt fail	H	Accepted
I5042	Chronic combined systolic and diastolic hrt fail	H	Accepted
I5043	Acute on chronic combined systolic and diastolic hrt fail	H	Accepted
I50810	Right heart failure, unspecified	H	Accepted
I50811	Acute right heart failure	H	Accepted
I50812	Chronic right heart failure	H	Accepted
I50813	Acute on chronic right heart failure	H	Accepted
I50814	Right heart failure due to left heart failure	H	Accepted
I5082	Biventricular heart failure	H	Accepted
I5083	High output heart failure	H	Accepted
I5084	End stage heart failure	H	Accepted
I5089	Other heart failure	H	Accepted
I509	Heart failure, unspecified	H	Accepted
I510	Cardiac septal defect, acquired	H	Accepted
I511	Rupture of chordae tendineae, not elsewhere classified	H	Accepted
I512	Rupture of papillary muscle, not elsewhere classified	H	Accepted
I513	Intracardiac thrombosis, not elsewhere classified	H	Accepted
I514	Myocarditis, unspecified	H	Accepted
I515	Myocardial degeneration	H	Accepted
I517	Cardiomegaly	H	Accepted
I5181	Takotsubo syndrome	H	Accepted
I5189	Other ill-defined heart diseases	H	Accepted
I519	Heart disease, unspecified	H	Accepted
I52	Other heart disorders in diseases classified elsewhere	None	Cannot group
I5A	Non-ischemic myocardial injury (non-traumatic)	None	Cannot group

Source: CMS HH PPS Grouper Software v07.1.26, effective 2026-04-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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I30-I5A — Other forms of heart disease

Where these codes group

Every code in I30-I5A

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