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  6. 2025 ICD-10-CM Code E34.9

2025 ICD-10-CM Diagnosis Code E34.9

Endocrine disorder, unspecified

ICD-10-CM Code:
E34.9
ICD-10 Code for:
Endocrine disorder, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

E34.9 is a billable diagnosis code used to specify a medical diagnosis of endocrine disorder, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.

Unspecified diagnosis codes like E34.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Code Classification

  • Endocrine, nutritional and metabolic diseases
    E00–E89
    • Disorders of other endocrine glands
      E20-E35
      • Other endocrine disorders
        E34

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

  • Abnormal hormonal requirement
  • Abnormal hormone production
  • Abnormal hormone secretion
  • Acute confusional state, of endocrine origin
  • Adult osteomalacia due to endocrine disease
  • Alopecia, progressive neurological defect, endocrinopathy syndrome
  • Anemia of endocrine disorder
  • Arthropathy associated with an endocrine AND/OR metabolic disorder
  • Arthropathy due to endocrine disorder
  • Autonomic neuropathy due to endocrine disease
  • Benign intracranial hypertension
  • Benign intracranial hypertension due to endocrine disease
  • Chorea due to endocrine disorder
  • Combination of endocrine dysfunction
  • Decreased hormonal activity
  • Decreased hormone production
  • Decreased hormone secretion
  • Disorder of endocrine receptor
  • Disorder of endocrine system
  • Endocrine disease treatment started
  • Endocrine disorder monitoring status
  • Endocrine disorder related to puberty
  • Endocrine female infertility
  • Endocrine menstrual disturbance
  • Endocrine myopathy
  • Endocrine symptom change
  • Endocrine system complication of procedure
  • Epiphyseal arrest due to disorder of endocrine system
  • Erectile dysfunction due to endocrine disease
  • Erythrocytosis due to endocrine disorder
  • Functional disease of the CNS with neuroendocrine disturbance
  • Glaucoma in endocrine, nutritional and metabolic diseases
  • Hereditary disorder of endocrine system
  • Hormonal activity
  • Hormonal requirement
  • Hormonal resistance
  • Hypermelanosis due to endocrine disorder
  • Hypermelanosis due to hormonal factor
  • Hypertension secondary to endocrine disorder
  • Impaired glucose tolerance associated with hormonal etiology
  • Inappropriate hormone secretion
  • Inappropriate secondary erythrocytosis
  • Increased hormonal activity
  • Increased hormone production
  • Increased hormone secretion
  • Infantile multisystem neurologic, endocrine, pancreatic disease
  • Intellectual disability, myopathy, short stature, endocrine defect syndrome
  • Isolated deficiency of hormone other than HGH
  • Lymphedema due to endocrine disease
  • Multiple endocrine deficiency syndrome
  • Neuropathy associated with endocrine disorder
  • Obesity due to leptin receptor gene deficiency
  • Optic nerve hypoplasia due to endocrine deficiency
  • Osteoporosis due to endocrine disorder
  • Pancreatic insufficiency
  • POEMS syndrome
  • Polyendocrine polyneuropathy syndrome
  • Psychogenic endocrine malfunction
  • Sequelae of endocrine disorders
  • Severe obesity

Clinical Classification

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

Other specified and unspecified endocrine disorders

CCSR Code: END015

Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • POEMS Syndrome

    a multisystemic disorder characterized by a sensorimotor polyneuropathy (polyneuropathies), organomegaly, endocrinopathy, monoclonal gammopathy, and pigmentary skin changes. other clinical features which may be present include edema; cachexia; microangiopathic glomerulopathy; pulmonary hypertension (hypertension, pulmonary); cutaneous necrosis; thrombocytosis; and polycythemia. this disorder is frequently associated with osteosclerotic myeloma. (from adams et al., principles of neurology, 6th ed, p1335; rev med interne 1997;18(7):553-62)

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Endocrine disturbance NOS
  • Hormone disturbance NOS

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert E34.9 to ICD-9-CM

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

Endocrine disorder NOS

ICD-9-CM: 259.9

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

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Patient Education


Endocrine Diseases

Your endocrine system includes eight major glands throughout your body. These glands make hormones. Hormones are chemical messengers. They travel through your bloodstream to tissues or organs. Hormones work slowly and affect body processes from head to toe. These include:

  • Growth and development
  • Metabolism - digestion, elimination, breathing, blood circulation and maintaining body temperature
  • Sexual function
  • Reproduction
  • Mood

If your hormone levels are too high or too low, you may have a hormone disorder. Hormone diseases also occur if your body does not respond to hormones the way it is supposed to. Stress, infection and changes in your blood's fluid and electrolyte balance can also influence hormone levels.

In the United States, the most common endocrine disease is diabetes. There are many others. They are usually treated by controlling how much hormone your body makes. Hormone supplements can help if the problem is too little of a hormone.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.