E35: Disorders of endocrine glands in diseases classified elsewhere

Clinical notes

Code first

This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.

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

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

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)

Use additional code

This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.

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

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
•This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
•If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

2468Approximate match
2558Approximate match
2598Approximate match

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

E35 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.