2025 ICD-10-CM Diagnosis Code I37.1

Nonrheumatic pulmonary valve insufficiency

• I37.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2025 edition of ICD-10-CM I37.1 became effective on October 1, 2024.
• This is the American ICD-10-CM version of I37.1 – other international versions of ICD-10 I37.1 may differ.

Applicable To

• Nonrheumatic pulmonary valve incompetence
• Nonrheumatic pulmonary valve regurgitation

The following code(s) above I37.1 contain annotation back-references

 that may be applicable to I37.1:

• I00-I99  Diseases of the circulatory system
• I37  Nonrheumatic pulmonary valve disorders

Approximate Synonyms

• Pulmonary incompetence, non-rheumatic
• Pulmonary valve regurgitation
• Pulmonic valve regurgitation

Clinical Information

• Backflow of blood from the pulmonary artery into the right ventricle due to imperfect closure of the pulmonary valve.
• Dysfunction of the pulmonary valve, with incomplete valve closure resulting in valvular regurgitation.
• The backflow of blood from the pulmonary artery into the right ventricle, owing to insufficiency of the pulmonic semilunar valve.

ICD-10-CM I37.1 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

• 306 Cardiac congenital and valvular disorders with mcc
• 307 Cardiac congenital and valvular disorders without mcc

Convert I37.1 to ICD-9-CMCode 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
• 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to I37.1:

• Incompetency, incompetent, incompetence
  • annular
    • pulmonary valve I37.1 (heart)
  • pulmonary valve (heart) I37.1
• Insufficiency, insufficient
  • pulmonaryJ98.4
    • valve I37.1
• Murmur (cardiac) (heart) (organic) R01.1
  • Graham Steell I37.1
• RegurgitationR11.10
  • pulmonary (valve) (heart) I37.1