Is ICD-10-CM code E35 billable?

Yes, E35 (Disorders of endocrine glands in diseases classified elsewhere) is a billable ICD-10-CM diagnosis code, valid for reimbursement on HIPAA-covered transactions for FY2026.

What chapter does ICD-10-CM code E35 belong to?

E35 belongs to Chapter 4 of the ICD-10-CM tabular list: E00–E89 (Endocrine, Nutritional and Metabolic Diseases).

E35Billable

Disorders of endocrine glands in diseases classified elsewhere

Endocrine, Nutritional and Metabolic Diseases·Disorders of other endocrine glands (E20-E35)·category·FY 2026

CH4 Parent Instructions

Excludes1(Not coded here. Use a different code.)

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

E20-E35 Parent Instructions

Excludes1(Not coded here. Use a different code.)

galactorrhea (N64.3)
gynecomastia (N62)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

Echinococcus granulosus infection of thyroid gland (B67.3)
meningococcal hemorrhagic adrenalitis (A39.1)
syphilis of endocrine gland (A52.79)
tuberculosis of adrenal gland, except calcification (A18.7)
tuberculosis of endocrine gland NEC (A18.82)
tuberculosis of thyroid gland (A18.81)
Waterhouse-Friderichsen syndrome (A39.1)

Code First

underlying disease, such as:
late congenital syphilis of thymus gland [Dubois disease] (A50.59)

Use Additional Code

code, if applicable, to identify:
sequelae of tuberculosis of other organs (B90.8)

Clinical Hierarchy

BillableHas subcodes

CH4Endocrine, nutritional and metabolic diseases (E00-E89)

E20-E35Disorders of other endocrine glands (E20-E35)

E35Disorders of endocrine glands in diseases classified elsewhereBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.