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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  • R40.2213|

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

  • R40.2214|

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

  • R40.222|

    Coma scale, best verbal response, incomprehensible words

  • R40.2220|

    Coma scale, best verbal response, incomprehensible words, unspecified time

  • R40.2221|

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

  • R40.2222|

    Coma scale, best verbal response, incomprehensible words, at arrival to emergency department

  • R40.2223|

    Coma scale, best verbal response, incomprehensible words, at hospital admission

  • R40.2224|

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

  • R40.223|

    Coma scale, best verbal response, inappropriate words

  • R40.2230|

    Coma scale, best verbal response, inappropriate words, unspecified time

  • R40.2231|

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

  • R40.2232|

    Coma scale, best verbal response, inappropriate words, at arrival to emergency department

  • R40.2233|

    Coma scale, best verbal response, inappropriate words, at hospital admission

  • R40.2234|

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

  • R40.224|

    Coma scale, best verbal response, confused conversation

  • R40.2240|

    Coma scale, best verbal response, confused conversation, unspecified time

  • R40.2241|

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

  • R40.2242|

    Coma scale, best verbal response, confused conversation, at arrival to emergency department

  • R40.2243|

    Coma scale, best verbal response, confused conversation, at hospital admission

  • R40.2244|

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

  • R40.225|

    Coma scale, best verbal response, oriented

  • R40.2250|

    Coma scale, best verbal response, oriented, unspecified time

  • 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

  • R40.23|

    Coma scale, best motor response

  • 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

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