Cardiomyopathy in diseases classified elsewhere (2024)

ICD-10-CM Codes
I00-I99
I30-I5A
I43-
2024 ICD-10-CM Diagnosis Code I43

Cardiomyopathy in diseases classified elsewhere

2016

2017

2018

2019

2020

2021

2022

2023

2024

Billable/Specific Code

Manifestation Code

I43 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursem*nt purposes.
The 2024 edition of ICD-10-CM I43 became effective on October 1, 2023.
This is the American ICD-10-CM version of I43 - other international versions of ICD-10 I43 may differ.

ICD-10-CM Coding Rules

I43 describes the manifestation of an underlying disease, not the disease itself.

Code First

Code First Help

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.

underlying disease, such as:
amyloidosis (
ICD-10-CM Diagnosis Code E85
- E85 Amyloidosis
  - E85.0 Non-neuropathic heredofamilial amyloidosis
  - E85.1 Neuropathic heredofamilial amyloidosis
  - E85.2 Heredofamilial amyloidosis, unspecified
  - E85.3 Secondary systemic amyloidosis
  - E85.4 Organ-limited amyloidosis
  - E85.8 Other amyloidosis
    - E85.81 Light chain (AL) amyloidosis
    - E85.82 Wild-type transthyretin-related (ATTR) amyloi...
    - E85.89 Other amyloidosis
  - E85.9 Amyloidosis, unspecified
E85.-)
glycogen storage disease (
ICD-10-CM Diagnosis Code E74.0
Glycogen storage disease
E74.0-)
gout (
ICD-10-CM Diagnosis Code M10.0
Idiopathic gout
Applicable To
- Gouty bursitis
- Primary gout
M10.0-)
thyrotoxicosis (
ICD-10-CM Diagnosis Code E05.0
Thyrotoxicosis with diffuse goiter
Applicable To
- Exophthalmic or toxic goiter NOS
- Graves' disease
- Toxic diffuse goiter
E05.0-
ICD-10-CM Diagnosis Code E05.9
Thyrotoxicosis, unspecified
Applicable To
- Hyperthyroidism NOS
E05.9-)

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I43. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

cardiomyopathy (in):
coxsackie (virus) (
ICD-10-CM Diagnosis Code B33.24
Viral cardiomyopathy
B33.24)
diphtheria (
ICD-10-CM Diagnosis Code A36.81
Diphtheritic cardiomyopathy
Applicable To
- Diphtheritic myocarditis
A36.81)
sarcoidosis (
ICD-10-CM Diagnosis Code D86.85
Sarcoid myocarditis
D86.85)
tuberculosis (
ICD-10-CM Diagnosis Code A18.84
Tuberculosis of heart
Applicable To
- Tuberculous cardiomyopathy
- Tuberculous endocarditis
- Tuberculous myocarditis
- Tuberculous pericarditis
A18.84)

The following code(s) above I43 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to I43:

I00-I99
2024 ICD-10-CM Range I00-I99
Diseases of the circulatory system
Type 2 Excludes
- 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.-)
Diseases of the circulatory system

Approximate Synonyms

Cardiac amyloidosis
Cardiomyopathy, metabolic
Dilated cardiomyopathy associated with connective tissue disorder
Dilated cardiomyopathy due to connective tissue di
Dilated cardiomyopathy due to dermatomyositis
Dilated cardiomyopathy secondary to dermatomyositis
Dilated cardiomyopathy secondary to malignancy
Dilated cardiomyopathy, due to malignancy
Metabolic cardiomyopathy
Restrictive cardiomyopathy secondary to malignancy
Restrictive cardiomyopathy, due to malignancy
Senile cardiac amyloidosis

ICD-10-CM I43 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

314 Other circulatory system diagnoses with mcc
315 Other circulatory system diagnoses with cc
316 Other circulatory system diagnoses without cc/mcc
791 Prematurity with major problems
793 Full term neonate with major problems

Convert I43 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change
2024 (effective 10/1/2023): No change

Code annotations containing back-references to I43:

Use Additional: M1A, M10
ICD-10-CM Diagnosis Code M1A
Chronic gout
Type 1 Excludes
- gout NOS (M10.-)
Type 2 Excludes
- acute gout (M10.-)
Use Additional
- code to identify:
- Autonomic neuropathy in diseases classified elsewhere (G99.0)
- Calculus of urinary tract in diseases classified elsewhere (N22)
- Cardiomyopathy in diseases classified elsewhere (I43)
- Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-)
- Disorders of iris and ciliary body in diseases classified elsewhere (H22)
- Glomerular disorders in diseases classified elsewhere (N08)
ICD-10-CM Diagnosis Code M10
Gout
Applicable To
- Acute gout
- Gout attack
- Gout flare
- Podagra
Type 2 Excludes
- chronic gout (M1A.-)
Use Additional
- code to identify:
- Autonomic neuropathy in diseases classified elsewhere (G99.0)
- Calculus of urinary tract in diseases classified elsewhere (N22)
- Cardiomyopathy in diseases classified elsewhere (I43)
- Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-)
- Disorders of iris and ciliary body in diseases classified elsewhere (H22)
- Glomerular disorders in diseases classified elsewhere (N08)

ICD-10-CM Codes Adjacent To I43

I42.0 Dilated cardiomyopathy

I42.1 Obstructive hypertrophic cardiomyopathy

I42.2 Other hypertrophic cardiomyopathy

I42.3 Endomyocardial (eosinophilic) disease

I42.4 Endocardial fibroelastosis

I42.5 Other restrictive cardiomyopathy

I42.6 Alcoholic cardiomyopathy

I42.7 Cardiomyopathy due to drug and external agent

I42.8 Other cardiomyopathies

I42.9 Cardiomyopathy, unspecified

I43 Cardiomyopathy in diseases classified elsewhere

I44 Atrioventricular and left bundle-branch block

I44.0 Atrioventricular block, first degree

I44.1 Atrioventricular block, second degree

I44.2 Atrioventricular block, complete

I44.3 Other and unspecified atrioventricular block

I44.30 Unspecified atrioventricular block

I44.39 Other atrioventricular block

I44.4 Left anterior fascicular block

I44.5 Left posterior fascicular block

I44.6 Other and unspecified fascicular block

Reimbursem*nt claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Cardiomyopathy in diseases classified elsewhere (2024)

Cardiomyopathy in diseases classified elsewhere

Glycogen storage disease

Idiopathic gout

Thyrotoxicosis with diffuse goiter

Thyrotoxicosis, unspecified

Viral cardiomyopathy

Diphtheritic cardiomyopathy

Sarcoid myocarditis

Tuberculosis of heart

Chronic gout

Gout

References