I27 – Other pulmonary heart diseases
ICD-10-CM 2027 diagnosis code · Pulmonary heart disease and diseases of pulmonary circulation
ICD-10-CM code
I27
- Code
I27(claims format:I27)- Description
- Other pulmonary heart diseases
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 9. Diseases of the circulatory system (I00-I99)
- Block
- I26-I28 Pulmonary heart disease and diseases of pulmonary circulation
Billable codes under I27
I27 is a header code and cannot be used on claims. Choose the most specific code:
- I27.0 – Primary pulmonary hypertensionBillable
- I27.1 – Kyphoscoliotic heart diseaseBillable
- I27.2 – Other secondary pulmonary hypertensionHeader (more codes below)
- I27.8 – Other specified pulmonary heart diseasesHeader (more codes below)
- I27.9 – Pulmonary heart disease, unspecifiedBillable
Frequently asked questions
What is ICD-10 code I27?
I27 is the ICD-10-CM code for other pulmonary heart diseases, in the block I26-I28 (Pulmonary heart disease and diseases of pulmonary circulation).
Is I27 a billable code?
No. I27 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.