H47.42 Disorders of optic chiasm in (due to) neoplasm

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from H47.4 Disorders of optic chiasm

Code also

• underlying condition

MS-DRG index

Defines the logic of DRG(s) 091-093 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 377.52 Disorders of optic chiasm associated with other neoplasms (approximate)

Diagnosis Index entries for H47.42

• Disorder (of) › optic › chiasm › due to › neoplasm

Nearby codes

• H47.392 Other disorders of optic disc, left eye
• H47.393 Other disorders of optic disc, bilateral
• H47.399 Other disorders of optic disc, unspecified eye
• H47.4 Disorders of optic chiasm
• H47.41 Disorders of optic chiasm in (due to) inflammatory disorders
• H47.42 Disorders of optic chiasm in (due to) neoplasm (this code)
• H47.43 Disorders of optic chiasm in (due to) vascular disorders
• H47.49 Disorders of optic chiasm in (due to) other disorders
• H47.5 Disorders of other visual pathways
• H47.51 Disorders of visual pathways in (due to) inflammatory disorders
• H47.511 Disorders of visual pathways in (due to) inflammatory disorders, right side