ICD-10 code for Subependymal glioma

The ICD-10-CM code for Subependymal glioma is D43.2 (Neoplasm of uncertain behavior of brain, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on D43.2.

Within D43, choose D43.2 (brain, unspecified) only when documentation doesn't support a more specific option: brain, supratentorial (D43.0), brain, infratentorial (D43.1), cranial nerves (D43.3), spinal cord (D43.4), other specified parts of central nervous system (D43.8) and central nervous system, unspecified (D43.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 054 (Nervous System Neoplasms with MCC, relative weight 1.5194) and DRG 055 (Nervous System Neoplasms without MCC, relative weight 1.0296), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.