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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  • R40.2251—

    Coma scale, best verbal response, oriented, in the field [EMT or ambulance]

  • R40.2252—

    Coma scale, best verbal response, oriented, at arrival to emergency department

  • R40.2253—

    Coma scale, best verbal response, oriented, at hospital admission

  • R40.2254—

    Coma scale, best verbal response, oriented, 24 hours or more after hospital admission

  • R40.231—

    Coma scale, best motor response, none

  • R40.2310—

    Coma scale, best motor response, none, unspecified time

  • R40.2311—

    Coma scale, best motor response, none, in the field [EMT or ambulance]

  • R40.2312—

    Coma scale, best motor response, none, at arrival to emergency department

  • R40.2313—

    Coma scale, best motor response, none, at hospital admission

  • R40.2314—

    Coma scale, best motor response, none, 24 hours or more after hospital admission

  • R40.232—

    Coma scale, best motor response, extension

  • R40.2320—

    Coma scale, best motor response, extension, unspecified time

  • R40.2321—

    Coma scale, best motor response, extension, in the field [EMT or ambulance]

  • R40.2322—

    Coma scale, best motor response, extension, at arrival to emergency department

  • R40.2323—

    Coma scale, best motor response, extension, at hospital admission

  • R40.2324—

    Coma scale, best motor response, extension, 24 hours or more after hospital admission

  • R40.233—

    Coma scale, best motor response, abnormal flexion

  • R40.2330—

    Coma scale, best motor response, abnormal flexion, unspecified time

  • R40.2331—

    Coma scale, best motor response, abnormal flexion, in the field [EMT or ambulance]

  • R40.2332—

    Coma scale, best motor response, abnormal flexion, at arrival to emergency department

  • R40.2333—

    Coma scale, best motor response, abnormal flexion, at hospital admission

  • R40.2334—

    Coma scale, best motor response, abnormal flexion, 24 hours or more after hospital admission

  • R40.234—

    Coma scale, best motor response, flexion withdrawal

  • R40.2340—

    Coma scale, best motor response, flexion withdrawal, unspecified time

  • R40.2341—

    Coma scale, best motor response, flexion withdrawal, in the field [EMT or ambulance]

  • R40.2342—

    Coma scale, best motor response, flexion withdrawal, at arrival to emergency department

  • R40.2343—

    Coma scale, best motor response, flexion withdrawal, at hospital admission

  • R40.2344—

    Coma scale, best motor response, flexion withdrawal, 24 hours or more after hospital admission

  • R40.235—

    Coma scale, best motor response, localizes pain

  • R40.2350—

    Coma scale, best motor response, localizes pain, unspecified time

  • R40.2351—

    Coma scale, best motor response, localizes pain, in the field [EMT or ambulance]

  • R40.2352—

    Coma scale, best motor response, localizes pain, at arrival to emergency department

  • R40.2353—

    Coma scale, best motor response, localizes pain, at hospital admission

  • R40.2354—

    Coma scale, best motor response, localizes pain, 24 hours or more after hospital admission

  • R40.236—

    Coma scale, best motor response, obeys commands

  • R40.2360—

    Coma scale, best motor response, obeys commands, unspecified time

  • R40.2361—

    Coma scale, best motor response, obeys commands, in the field [EMT or ambulance]

  • R40.2362—

    Coma scale, best motor response, obeys commands, at arrival to emergency department

  • R40.2363—

    Coma scale, best motor response, obeys commands, at hospital admission

  • R40.2364—

    Coma scale, best motor response, obeys commands, 24 hours or more after hospital admission

  • R40.241—

    Glasgow coma scale score 13-15

  • R40.2410—

    Glasgow coma scale score 13-15, unspecified time

  • R40.2411—

    Glasgow coma scale score 13-15, in the field [EMT or ambulance]

  • R40.2412—

    Glasgow coma scale score 13-15, at arrival to emergency department

  • R40.2413—

    Glasgow coma scale score 13-15, at hospital admission

  • R40.2414—

    Glasgow coma scale score 13-15, 24 hours or more after hospital admission

  • R40.242—

    Glasgow coma scale score 9-12

  • R40.2420—

    Glasgow coma scale score 9-12, unspecified time

  • R40.2421—

    Glasgow coma scale score 9-12, in the field [EMT or ambulance]

  • R40.2422—

    Glasgow coma scale score 9-12, at arrival to emergency department

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