2020 ICD-10-CM Diagnosis Code I28.1

Aneurysm of pulmonary artery

    2016 2017 2018 2019 2020 Billable/Specific Code
  • I28.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM I28.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I28.1 - other international versions of ICD-10 I28.1 may differ.
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 I28.1. 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.
  • congenital aneurysm (
    ICD-10-CM Diagnosis Code Q25.79

    Other congenital malformations of pulmonary artery

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Aberrant pulmonary artery
    • Agenesis of pulmonary artery
    • Congenital aneurysm of pulmonary artery
    • Congenital anomaly of pulmonary artery
    • Hypoplasia of pulmonary artery
    Q25.79
    )
  • congenital arteriovenous aneurysm (
    ICD-10-CM Diagnosis Code Q25.72

    Congenital pulmonary arteriovenous malformation

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital pulmonary arteriovenous aneurysm
    Q25.72
    )
The following code(s) above I28.1 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 I28.1:
  • I00-I99
    2020 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
  • Aneurysm, pulmonary artery
  • Pulmonary artery aneurysm
ICD-10-CM I28.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 314 Other circulatory system diagnoses with mcc
  • 315 Other circulatory system diagnoses with cc
  • 316 Other circulatory system diagnoses without cc/mcc

Convert I28.1 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
Code annotations containing back-references to I28.1:
  • Type 2 Excludes: I72
    ICD-10-CM Diagnosis Code I72

    Other aneurysm

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    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)

Diagnosis Index entries containing back-references to I28.1:
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) I72.9
    ICD-10-CM Diagnosis Code I72.9

    Aneurysm of unspecified site

      2016 2017 2018 2019 2020 Billable/Specific Code
    • pulmonary I28.1
    • lung I28.1 (pulmonary artery)

ICD-10-CM Codes Adjacent To I28.1
I27.24 Chronic thromboembolic pulmonary hypertension
I27.29 Other secondary pulmonary hypertension
I27.8 Other specified pulmonary heart diseases
I27.81 Cor pulmonale (chronic)
I27.82 Chronic pulmonary embolism
I27.83 Eisenmenger's syndrome
I27.89 Other specified pulmonary heart diseases
I27.9 Pulmonary heart disease, unspecified
I28 Other diseases of pulmonary vessels
I28.0 Arteriovenous fistula of pulmonary vessels
I28.1 Aneurysm of pulmonary artery
I28.8 Other diseases of pulmonary vessels
I28.9 Disease of pulmonary vessels, unspecified
I30 Acute pericarditis
I30.0 Acute nonspecific idiopathic pericarditis
I30.1 Infective pericarditis
I30.8 Other forms of acute pericarditis
I30.9 Acute pericarditis, unspecified
I31 Other diseases of pericardium
I31.0 Chronic adhesive pericarditis
I31.1 Chronic constrictive pericarditis

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