ICD-10-CM Diagnosis code G13.0

Paraneoplastic neuromyopathy and neuropathy

Code Details

Body System Diseases of the nervous system and sense organs
Chronic Condition Yes

Coding Guidelines for G13.0

G13.0 is a valid ICD-10-CM diagnosis code meaning 'Paraneoplastic neuromyopathy and neuropathy'.

It is also suitable for:

  • Carcinomatous neuromyopathy
  • Sensorial paraneoplastic neuropathy [Denny Brown]

Must Code Etiology Before Coding G13.0

Some conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation.

G13.0 is a manifestation code. For it to be valid, one of the following etiology codes must also be coded first:

  • underlying neoplasm (C00-D49)

Complications & Comorbid Conditions (CC/MCC) Rules for G13.0

G13.0 is not a CC or MCC.

DRG Mapping Rules for G13.0

Diagnostic codes are the first step in the DRG mapping process.

The patient's primary diagnostic code is the most important. Assuming the patient's primary diagnostic code is G13.0, look in the list below to see which MDC's "Assignment of Diagnosis Codes" is first. That is the MDC that the patient will be grouped into.

From there, check the subsections of the MDC listed. The patient will be mapped into the first subsection for which the treatment performed on the patient meet the listed requirements of that subsection.

DRG grouping rules are adjusted each year, so make sure to check the rules for the fiscal year of the patient's discharge date.

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