Is E35 a billable ICD-10-CM code?

Yes. E35 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does E35 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of other endocrine glands (E20-E35).

What cannot be coded together with E35?

E35 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

E35

E35 — Disorders of endocrine glands in diseases classified elsewhere

Billable / specific codeICD-10-CM

E35 is a billable, specific ICD-10-CM code for disorders of endocrine glands in diseases classified elsewhere. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

The underlying condition must be sequenced before this code.

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

Use additional code

Add a secondary code to capture the detail described below.

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

Risk adjustment

E35 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

E35 is named in 8 Medicare coverage policies — 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56551Billing and Coding: Visual Fields Testing
A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56729Billing and Coding: Magnetic Resonance Imaging of the Head and Neck
A57029Billing and Coding: Ultrasound, Soft Tissues of Head and Neck

Questions about E35

Is E35 a billable ICD-10-CM code?: Yes. E35 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does E35 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of other endocrine glands (E20-E35).
What cannot be coded together with E35?: E35 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.