2021 ICD-10-CM Code C74.90

Malignant neoplasm of unspecified part of unspecified adrenal gland

Version 2021

Valid for Submission

C74.90 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of unspecified part of unspecified adrenal gland. The code C74.90 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code C74.90 might also be used to specify conditions or terms like adrenal neuroblastoma, international neuroblastoma pathology classification: favorable histology group, patient age 1.5 years up to but less than 5 years, with differentiating neuroblastoma , and low mitosis-karyorrhexis index, international neuroblastoma pathology classification: favorable histology group, patient less than 1.5 years of age, with poorly differentiated neuroblastoma , and low or intermediate mitosis-karyorrhexis index, international neuroblastoma pathology classification: favorable histology group, patient of any age with ganglioneuroblastoma, intermixed , international neuroblastoma pathology classification: favorable histology group, patient of any age with ganglioneuroma maturing, or mature , international neuroblastoma pathology classification: unfavorable histology group, patient 1.5 yr up to but less than 5 yr, with poorly differentiated neuroblastoma and any mki or differentiating neuroblastoma and intermediate or high mki, etc.

Unspecified diagnosis codes like C74.90 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.

ICD-10:C74.90
Short Description:Malignant neoplasm of unsp part of unspecified adrenal gland
Long Description:Malignant neoplasm of unspecified part of unspecified adrenal gland

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code C74.90 are found in the index:

Approximate Synonyms

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

Convert C74.90 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code C74.90 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Adrenal Gland Cancer

Your adrenal, or suprarenal, glands are located on the top of each kidney. These glands produce hormones that you can't live without, including sex hormones and cortisol, which helps you respond to stress and has many other functions.

A number of disorders can affect the adrenal glands, including tumors. Tumors can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Most adrenal gland tumors are benign. They usually do not cause symptoms and may not require treatment. Malignant adrenal gland cancers are uncommon.

Types of tumors include

Symptoms depend on the type of cancer you have. Treatments may include surgery, chemotherapy, or radiation therapy.


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Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)