2024 ICD-10-CM Diagnosis Code C75.1

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Adenocarcinoma of pituitary gland
• Carcinoma of brain
• Carcinoma of brain
• Carcinoma of brain
• Ependymoma of brain
• Ependymoma of cerebrum
• Low grade glioma of cerebrum
• Malignant neoplasm of pituitary gland and craniopharyngeal duct
• Malignant pituitary blastoma
• Malignant tumor of craniopharyngeal duct
• Malignant tumor of hypothalamus
• Malignant tumor of pituitary and hypothalamus
• Malignant tumor of pituitary gland
• Mass of neurohypophysis
• Neoplasm of craniopharyngeal duct
• Neoplasm of uncertain behavior of endocrine glands and nervous system
• Neoplasm of uncertain behavior of pituitary gland
• Pituitary carcinoma
• Primary adenocarcinoma of pituitary gland
• Primary malignant neoplasm of pituitary gland
• Sellar ependymoma of posterior pituitary gland
• Tumor of hypothalamus

Clinical Information

• Empty Sella Syndrome

  a condition when the sella turcica is not filled with pituitary tissue. the pituitary gland is either compressed, atrophied, or removed. there are two types: (1) primary empty sella is due a defect in the sella diaphragm leading to arachnoid herniation into the sellar space; (2) secondary empty sella is associated with the removal or treatment of pituitary neoplasms.

• Sella Turcica

  a bony prominence situated on the upper surface of the body of the sphenoid bone. it houses the pituitary gland.

C75.1 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

MS-DRG	MS-DRG Title	MCD	Relative Weight
643	ENDOCRINE DISORDERS WITH MCC	10	1.6451
644	ENDOCRINE DISORDERS WITH CC	10	1.0617
645	ENDOCRINE DISORDERS WITHOUT CC/MCC	10	0.7609

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert C75.1 to ICD-9-CM

• ICD-9-CM Code: 194.3 - Malig neo pituitary
  Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Table of Neoplasms

This code is referenced in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

Filter table of neoplasms:

Neoplasm, neoplastic	Malignant Primary	Malignant Secondary	CaInSitu	Benign	Uncertain Behavior	Unspecified Behavior
»Neoplasm, neoplastic   »fossa (of)     »pituitary	C75.1	C79.89	D09.3	D35.2	D44.3	D49.7
»Neoplasm, neoplastic   »hypophysis	C75.1	C79.89	D09.3	D35.2	D44.3	D49.7
»Neoplasm, neoplastic   »intrasellar	C75.1	C79.89	D09.3	D35.2	D44.3	D49.7
»Neoplasm, neoplastic   »pituitary (body) (fossa) (gland) (lobe)	C75.1	C79.89	D09.3	D35.2	D44.3	D49.7
»Neoplasm, neoplastic   »Rathke's pouch	C75.1	C79.89	D09.3	D35.2	D44.3	D49.7
»Neoplasm, neoplastic   »sella turcica	C75.1	C79.89	D09.3	D35.2	D44.3	D49.7

Patient Education

Pituitary Tumors

Your pituitary gland is a pea-sized gland at the base of your brain. The pituitary is the "master control gland" - it makes hormones that affect growth and the functions of other glands in the body.

Pituitary tumors are common, but often they don't cause health problems. Most people with pituitary tumors never even know they have them. The most common type of pituitary tumor produces hormones and disrupts the balance of hormones in your body. This can cause endocrine diseases such as Cushing's syndrome and hyperthyroidism.

Symptoms of pituitary tumors include:

• Headaches
• Vision problems
• Nausea and vomiting
• Problems caused by the production of too many hormones

Pituitary tumors are usually curable. Treatment is often surgery to remove the tumor. Other options include medicines, radiation therapy, and chemotherapy.

[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.