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  3. E00–E89
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  5. Disorders of endocrine glands in diseases classified elsewhere (E35)

Disorders of endocrine glands in diseases classified elsewhere (E35)

The ICD-10 code E35 is used to classify disorders of endocrine glands that occur as part of other diseases already documented elsewhere in medical records. This code helps specify endocrine issues linked to broader health conditions rather than standalone endocrine diseases.

Known also as endocrine infection, this code covers situations where endocrine gland problems arise secondary to another diagnosed disease. For example, if a patient has an infection or systemic condition that impacts the endocrine glands, coders use E35 to capture that relationship precisely. Using this code ensures accurate reflection of underlying diseases affecting endocrine functions, which can include glands such as the thyroid, adrenal, or pituitary when these issues are not primary but tied to other medical diagnoses. If you are searching for the ICD-10 code for endocrine disorders related to other diseases, E35 is the appropriate choice to document these complex clinical scenarios.

Instructional Notations

Code First

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

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

Use Additional Code

The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

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

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • 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