ICD-11 classes
21 Symptoms, signs or clinical findings, not elsewhere...
Mental or behavioural symptoms, signs or clinical findings
MB21 — Symptoms, signs or clinical findings involving cognition
MB4B — Symbolic dysfunctions
MB4B.2 — Acalculia

ICD-11 MB4B.2 — Acalculia

Acalculia refers to the loss, usually in adulthood, of a previous ability to perform simple mathematical calculations that is inconsistent with general level of intellectual functioning and is acquired after the developmental period in individuals who had previously attained these skills, such as due to a stroke or other brain injury.

The diagnosis includes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• Symbolic dysfunctions #8958
• Symbolic dysfunctions #24213