ICD-10-CM code "R90": Abnormal findings on diagnostic imaging of central nervous system (2024)

Excludes

1. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

   Type 2abnormal findings on antenatal screening of mother (O28.-)

   Type 2certain conditions originating in the perinatal period (P04-P96)

   Type 2signs and symptoms classified in the body system chapters

   Type 2signs and symptoms of breast (N63, N64.5)

2. Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)

   Type 1abnormal findings on antenatal screening of mother (O28.-)

   Type 1diagnostic abnormal findings classified elsewhere - see Alphabetical Index

3. Abnormal findings on diagnostic imaging of central nervous system (R90)

Includes

1. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
2. Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)

   Includesnonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]

   Includesnonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]

   Includesnonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]

   Includesnonspecific abnormal findings on diagnostic imaging by thermography

   Includesnonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]

   Includesnonspecific abnormal findings on diagnostic imaging by X-ray examination

3. Abnormal findings on diagnostic imaging of central nervous system (R90)

Subcategories

• Intracranial space-occupying lesion found on diagnostic imaging of central nervous system (R90.0)
• Other abnormal findings on diagnostic imaging of central nervous system (R90.8)