All ICD10 Codes
Chapter 18

R00–R99: Symptoms, Signs and Abnormal Clinical and Laboratory Findings

Symptoms, Signs and Abnormal Clinical and Laboratory Findings diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)
All CodesBillable Only
Internal Codes
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  • R41.83—

    Borderline intellectual functioning

  • R41.84—

    Other specified cognitive deficit

  • R41.840—

    Attention and concentration deficit

  • R41.841—

    Cognitive communication deficit

  • R41.842—

    Visuospatial deficit

  • R41.843—

    Psychomotor deficit

  • R41.844—

    Frontal lobe and executive function deficit

  • R41.85—

    Anosognosia

  • R41.89—

    Other symptoms and signs involving cognitive functions and awareness

  • R41.9—

    Unspecified symptoms and signs involving cognitive functions and awareness

  • R42—

    Dizziness and giddiness

  • R43—

    Disturbances of smell and taste

  • R43.0—

    Anosmia

  • R43.1—

    Parosmia

  • R43.2—

    Parageusia

  • R43.8—

    Other disturbances of smell and taste

  • R43.9—

    Unspecified disturbances of smell and taste

  • R44—

    Other symptoms and signs involving general sensations and perceptions

  • R44.0—

    Auditory hallucinations

  • R44.1—

    Visual hallucinations

  • R44.2—

    Other hallucinations

  • R44.3—

    Hallucinations, unspecified

  • R44.8—

    Other symptoms and signs involving general sensations and perceptions

  • R44.9—

    Unspecified symptoms and signs involving general sensations and perceptions

  • R45—

    Symptoms and signs involving emotional state

  • R45.0—

    Nervousness

  • R45.1—

    Restlessness and agitation

  • R45.2—

    Unhappiness

  • R45.3—

    Demoralization and apathy

  • R45.4—

    Irritability and anger

  • R45.5—

    Hostility

  • R45.6—

    Violent behavior

  • R45.7—

    State of emotional shock and stress, unspecified

  • R45.8—

    Other symptoms and signs involving emotional state

  • R45.81—

    Low self-esteem

  • R45.82—

    Worries

  • R45.83—

    Excessive crying of child, adolescent or adult

  • R45.84—

    Anhedonia

  • R45.85—

    Homicidal and suicidal ideations

  • R45.850—

    Homicidal ideations

  • R45.851—

    Suicidal ideations

  • R45.86—

    Emotional lability

  • R45.87—

    Impulsiveness

  • R45.88—

    Nonsuicidal self-harm

  • R45.89—

    Other symptoms and signs involving emotional state

  • R46—

    Symptoms and signs involving appearance and behavior

  • R46.0—

    Very low level of personal hygiene

  • R46.1—

    Bizarre personal appearance

  • R46.2—

    Strange and inexplicable behavior

  • R46.3—

    Overactivity

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