G13

Non-Billable
ChapterG00–G99
Rankcategory
Official Description

Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 6: Diseases of the Nervous System (G00-G99).

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Clinical Hierarchy

BillableHas subcodes
CH6Diseases of the nervous system (G00-G99)
G10-G14Systemic atrophies primarily affecting the central nervous system (G10-G14)
G13Systemic atrophies primarily affecting central nervous system in diseases classified elsewhereNot billable
G13.0Paraneoplastic neuromyopathy and neuropathyBillable
G13.1Other systemic atrophy primarily affecting central nervous system in neoplastic diseaseBillable
G13.2Systemic atrophy primarily affecting the central nervous system in myxedemaBillable
G13.8Systemic atrophy primarily affecting central nervous system in other diseases classified elsewhereBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G13:

chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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