E34.01 — Carcinoid heart syndrome
Is E34.01 billable?
Yes — E34.01 is billable for FY2027. E34.01 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E34.01 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E34.01 at a glance
| Code | E34.01 |
|---|---|
| Description | Carcinoid heart syndrome |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E34.01 group to?
E34.01 sits in MDC 10 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 643Endocrine Disorders with MCCmedical
- 644Endocrine Disorders with CCmedical
- 645Endocrine Disorders without CC/MCCmedical
As a secondary diagnosis, E34.01 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is E34.01 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E34.01. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Carcinoidosis › heart
- Syndrome › Hedinger's
- Disease, diseased › carcinoid › heart
- Syndrome › carcinoid › heart
Inclusion terms
Alternative wording in documentation that is classified to E34.01.
- Carcinoid heart disease
- Hedinger syndrome
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E34.01 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Excludes1 — never code together — inherited from E20-E35
The conditions below can never be reported together with E34.01 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from E34
The conditions below can never be reported together with E34.01 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- pseudohypoparathyroidism (E20.1)
Code also — inherited from E34.0
Two codes may be needed to describe the condition fully. Whether E34.01 is sequenced first depends on the reason for the encounter.
How long has E34.01 existed?
E34.01 first appears in FY2025.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.