I27.29
Other secondary pulmonary hypertension
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
I00-I99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- transient cerebral ischemic attacks and related syndromes (G45.-)G45.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 15
I27.29code
Inclusion terms
- Group 5 pulmonary hypertension
- Pulmonary hypertension with unclear multifactorial mechanisms
- Pulmonary hypertension due to hematologic disorders
- Pulmonary hypertension due to metabolic disorders
- Pulmonary hypertension due to other systemic disorders
Code also
- other associated disorders, if known, such as:
- chronic myeloid leukemia (C92.10-C92.22)C92.10-C92.22
- essential thrombocythemia (D47.3)D47.3
- Gaucher disease (E75.22)E75.22
- hypertensive chronic kidney disease with end stage renal disease (I12.0, I13.11, I13.2)I12.0I13.11I13.2
- hyperthyroidism (E05.-)E05.-
- hypothyroidism (E00-E03)E00-E03
- polycythemia vera (D45)D45
- sarcoidosis (D86.-)D86.-
I27.2code
Code also
- associated underlying condition
Index entries leading here 1
- Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10
Alongside this code 5 same parent — I27.2
Medications 2
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.