Nerve root and plexus compressions in diseases classd elswhr (G55)

Instructional Notations

Code First Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

  • underlying disease, such as:
  • neoplasm C00 D49

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • nerve root compression due to in ankylosing spondylitis M45
  • nerve root compression due to in dorsopathies M53 M54
  • nerve root compression due to in intervertebral disc disorders M50.1 M51.1
  • nerve root compression due to in spondylopathies M46 M48
  • nerve root compression due to in spondylosis M47.0 M47.2