1. ICD-10-CM Codes
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2. E00-E89 Endocrine, nutritional and metabolic diseases
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3. E20-E35 Disorders of other endocrine glands
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4. E23- Hypofunction and other disorders of the pituitary gland
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2018/2019 ICD-10-CM Diagnosis Code E23.6

Other disorders of pituitary gland

2016 2017 2018 2019 Billable/Specific Code

• E23.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2018/2019 edition of ICD-10-CM E23.6 became effective on October 1, 2018.
• This is the American ICD-10-CM version of E23.6 - other international versions of ICD-10 E23.6 may differ.

• Abscess of pituitary
• Cyst, pituitary
• Disorder of posterior pituitary
• Empty sella syndrome
• Hypophysitis, lymphocytic granulomatous
• Hypothalamic insufficiency, secondary
• Lymphocytic granulomatous hypophysitis
• Pituitary cyst
• Pituitary disorder, posterior
• Rathke's pouch cyst
• Rathkes pouch cyst
• Secondary hypothalamic insufficiency

• 643 Endocrine disorders with mcc
• 644 Endocrine disorders with cc
• 645 Endocrine disorders without cc/mcc

Convert E23.6 to ICD-9-CM

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change

• Type 1 Excludes: E66
  ICD-10-CM Diagnosis Code E66

  Overweight and obesity

  2016 2017 2018 2019 Non-Billable/Non-Specific Code

  Code First

  • obesity complicating pregnancy, childbirth and the puerperium, if applicable (O99.21-)

  Type 1 Excludes

  • adiposogenital dystrophy (E23.6)
  • lipomatosis NOS (E88.2)
  • lipomatosis dolorosa [Dercum] (E88.2)
  • Prader-Willi syndrome (Q87.1)

  Use Additional

  • code to identify body mass index (BMI), if known (Z68.-)

• Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
  ICD-10-CM Diagnosis Code L02.91

  Cutaneous abscess, unspecified

  2016 2017 2018 2019 Billable/Specific Code
  • pituitary E23.6 (gland)
• Adiposis - see also Obesity
  • cerebralis E23.6
• Adiposogenital dystrophy E23.6
• Cyst (colloid) (mucous) (simple) (retention)
  • hypophysis, hypophyseal (duct) (recurrent) E23.6
    • cerebri E23.6
  • craniobuccal pouch E23.6
  • craniopharyngeal pouch E23.6
  • intrasellar E23.6
  • pituitary E23.6 (duct) (gland)
  • Rathke's pouch E23.6
• Degeneration, degenerative
  • pituitary E23.6 (gland)
• Disorder (of) - see also Disease
  • pituitary gland E23.7
    ICD-10-CM Diagnosis Code E23.7

    Disorder of pituitary gland, unspecified

    2016 2017 2018 2019 Billable/Specific Code
    • specified NEC E23.6
• Dystrophy, dystrophia
  • adiposogenital E23.6
• Embolism (multiple) (paradoxical) I74.9
  ICD-10-CM Diagnosis Code I74.9

  Embolism and thrombosis of unspecified artery

  2016 2017 2018 2019 Billable/Specific Code
  • pituitary E23.6
• Fröhlich's syndrome E23.6
• Hemorrhage, hemorrhagic (concealed) R58
  ICD-10-CM Diagnosis Code R58

  Hemorrhage, not elsewhere classified

  2016 2017 2018 2019 Billable/Specific Code

  Applicable To

  • Hemorrhage NOS

  Type 1 Excludes

  • hemorrhage included with underlying conditions, such as:
  • acute duodenal ulcer with hemorrhage (K26.0)
  • acute gastritis with bleeding (K29.01)
  • ulcerative enterocolitis with rectal bleeding (K51.01)
  • pituitary E23.6 (gland)
• Hypertrophy, hypertrophic
  • pituitary E23.6 (anterior) (fossa) (gland)
• Hypoplasia, hypoplastic
  • genitalia, genital organ(s)
    • in adiposogenital dystrophy E23.6
• Infarct, infarction
  • hypophysis E23.6 (anterior lobe)
  • pituitary E23.6 (gland)
• Obesity E66.9
  ICD-10-CM Diagnosis Code E66.9

  Obesity, unspecified

  2016 2017 2018 2019 Billable/Specific Code Questionable As Admission Dx

  Applicable To

  • Obesity NOS
  • pituitary E23.6
• Syndrome - see also Disease
  • adiposogenital E23.6

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.