ICD-10-CM Codes
I00-I99 Diseases of the circulatory system
I20-I25 Ischemic heart diseases
I25- Chronic ischemic heart disease
2021 ICD-10-CM Diagnosis Code I25.42

2021 ICD-10-CM Diagnosis Code I25.42

Coronary artery dissection

2016

2017

2018

2019

2020

2021

Billable/Specific Code

I25.42 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2021 edition of ICD-10-CM I25.42 became effective on October 1, 2020.
This is the American ICD-10-CM version of I25.42 - other international versions of ICD-10 I25.42 may differ.

The following code(s) above I25.42 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 I25.42:

I00-I99
2021 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
I20-I25
2021 ICD-10-CM Range I20-I25
Ischemic heart diseases
Use Additional
- code to identify presence of hypertension (I10-I16)
Ischemic heart diseases
I25
ICD-10-CM Diagnosis Code I25
Chronic ischemic heart disease
Use Additional
- code to identify:
- chronic total occlusion of coronary artery (I25.82)
- exposure to environmental tobacco smoke (Z77.22)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Chronic ischemic heart disease

Approximate Synonyms

Dissecting aneurysm of coronary artery
Dissecting aneurysm, coronary artery
Dissecting coronary artery aneurysm
Dissection of coronary artery

ICD-10-CM I25.42 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

314 Other circulatory system diagnoses with mcc
315 Other circulatory system diagnoses with cc
316 Other circulatory system diagnoses without cc/mcc

Convert I25.42 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

Code annotations containing back-references to I25.42:

Type 2 Excludes: I72
, I77.7

ICD-10-CM Diagnosis Code I72
Other aneurysm
Includes
- aneurysm (cirsoid) (false) (ruptured)
Type 2 Excludes
- acquired aneurysm (I77.0)
- aneurysm (of) aorta (I71.-)
- aneurysm (of) arteriovenous NOS (Q27.3-)
- carotid artery dissection (I77.71)
- cerebral (nonruptured) aneurysm (I67.1)
- coronary aneurysm (I25.4)
- coronary artery dissection (I25.42)
- dissection of artery NEC (I77.79)
- dissection of precerebral artery, congenital (nonruptured) (Q28.1)
- heart aneurysm (I25.3)
- iliac artery dissection (I77.72)
- precerebral artery, congential (nonruptured) (Q28.1)
- pulmonary artery aneurysm (I28.1)
- renal artery dissection (I77.73)
- retinal aneurysm (H35.0)
- ruptured cerebral aneurysm (I60.7)
- varicose aneurysm (I77.0)
- vertebral artery dissection (I77.74)
ICD-10-CM Diagnosis Code I77.7
Other arterial dissection
Type 2 Excludes
- dissection of aorta (I71.0-)
- dissection of coronary artery (I25.42)

Diagnosis Index entries containing back-references to I25.42:

Dissection
- artery I77.70
  ICD-10-CM Diagnosis Code I77.70
  Dissection of unspecified artery
  2017 - New Code 2018 2019 2020 2021 Billable/Specific Code
  - coronary I25.42

ICD-10-CM Codes Adjacent To I25.42

I25.10 …… without angina pectoris

I25.11 Atherosclerotic heart disease of native coronary artery with angina pectoris

I25.110 Atherosclerotic heart disease of native coronary artery with unstable angina pectoris

I25.111 …… with documented spasm

I25.118 Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris

I25.119 Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris

I25.2 Old myocardial infarction

I25.3 Aneurysm of heart

I25.4 Coronary artery aneurysm and dissection

I25.41 Coronary artery aneurysm

I25.42 Coronary artery dissection

I25.5 Ischemic cardiomyopathy

I25.6 Silent myocardial ischemia

I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris

I25.70 Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris

I25.700 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris

I25.701 …… with documented spasm

I25.708 Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris

I25.709 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris

I25.71 Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris

I25.710 Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris

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

2021 ICD-10-CM Diagnosis Code I25.42

Coronary artery dissection

Diseases of the circulatory system

Ischemic heart diseases

Chronic ischemic heart disease

Other aneurysm

Other arterial dissection

Dissection of unspecified artery