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G99.8

Billable

Other specified disorders of nervous system in diseases classified elsewhere

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Other nervous system disorders that occur as a result of another disease classified elsewhere in the medical coding system.

Coding Tips

  • •This is a residual code; use only when the nervous system manifestation is not more specifically classified
  • •Always code the underlying disease first, then use this code for the nervous system complication

Excludes 1 — Do NOT code together

  • nervous system involvement in:
  • cysticercosis (B69.0)
  • rubella (B06.0-)
  • syphilis (A52.1-)

Code First

  • underlying disorder, such as:
  • amyloidosis (E85.-)
  • avitaminosis (E56.-)

Code Hierarchy

└G99Other disorders of nervous system in diseases classified elsewhere└G99.8Other specified disorders of nervous system in diseases classified elsewhere
└G99.8Other specified disorders of nervous system in diseases classified elsewhere

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