Symptoms and signs involving cognition, perception, emotional state and behavior
97 codes in this section
About Section R40-R46
Section R40-R46 (R40-R46) covers symptoms and signs involving cognition, perception, emotional state and behavior. It sits within the Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified chapter (R00-R99). This section contains 97 ICD-10-CM codes, 62 billable diagnoses you can submit on a claim, and 35 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in R40-R46
Grouped by 3-character root code. Click any code for full detail.
| R40.0 | Somnolence | Billable |
| R40.1 | Stupor | Billable |
| R40.2 | Coma | Header |
| R40.20 | Unspecified coma | Billable |
| R40.21 | Coma scale, eyes open | Header |
| R40.211 | Coma scale, eyes open, never | Header |
| R40.212 | Coma scale, eyes open, to pain | Header |
| R40.213 | Coma scale, eyes open, to sound | Header |
| R40.214 | Coma scale, eyes open, spontaneous | Header |
| R40.22 | Coma scale, best verbal response | Header |
| R40.221 | Coma scale, best verbal response, none | Header |
| R40.222 | Coma scale, best verbal response, incomprehensible words | Header |
| R40.223 | Coma scale, best verbal response, inappropriate words | Header |
| R40.224 | Coma scale, best verbal response, confused conversation | Header |
| R40.225 | Coma scale, best verbal response, oriented | Header |
| R40.23 | Coma scale, best motor response | Header |
| R40.231 | Coma scale, best motor response, none | Header |
| R40.232 | Coma scale, best motor response, extension | Header |
| R40.233 | Coma scale, best motor response, abnormal flexion | Header |
| R40.234 | Coma scale, best motor response, flexion withdrawal | Header |
| R40.235 | Coma scale, best motor response, localizes pain | Header |
| R40.236 | Coma scale, best motor response, obeys commands | Header |
| R40.24 | Glasgow coma scale, total score | Header |
| R40.241 | Glasgow coma scale score 13-15 | Header |
| R40.242 | Glasgow coma scale score 9-12 | Header |
| R40.243 | Glasgow coma scale score 3-8 | Header |
| R40.244 | Other coma, without documented Glasgow coma scale score, or with partial score reported | Header |
| R40.2A | Nontraumatic coma due to underlying condition | Billable |
| R40.3 | Persistent vegetative state | Billable |
| R40.4 | Transient alteration of awareness | Billable |
| R41.0 | Disorientation, unspecified | Billable |
| R41.1 | Anterograde amnesia | Billable |
| R41.2 | Retrograde amnesia | Billable |
| R41.3 | Other amnesia | Billable |
| R41.4 | Neurologic neglect syndrome | Billable |
| R41.8 | Other symptoms and signs involving cognitive functions and awareness | Header |
| R41.81 | Age-related cognitive decline | Billable |
| R41.82 | Altered mental status, unspecified | Billable |
| R41.83 | Borderline intellectual functioning | Billable |
| R41.84 | Other specified cognitive deficit | Header |
| R41.840 | Attention and concentration deficit | Billable |
| R41.841 | Cognitive communication deficit | Billable |
| R41.842 | Visuospatial deficit | Billable |
| R41.843 | Psychomotor deficit | Billable |
| R41.844 | Frontal lobe and executive function deficit | Billable |
| R41.85 | Anosognosia | Billable |
| R41.89 | Other symptoms and signs involving cognitive functions and awareness | Billable |
| R41.9 | Unspecified symptoms and signs involving cognitive functions and awareness | Billable |
| R43.0 | Anosmia | Billable |
| R43.1 | Parosmia | Billable |
| R43.2 | Parageusia | Billable |
| R43.8 | Other disturbances of smell and taste | Billable |
| R43.9 | Unspecified disturbances of smell and taste | Billable |
| R44.0 | Auditory hallucinations | Billable |
| R44.1 | Visual hallucinations | Billable |
| R44.2 | Other hallucinations | Billable |
| R44.3 | Hallucinations, unspecified | Billable |
| R44.8 | Other symptoms and signs involving general sensations and perceptions | Billable |
| R44.9 | Unspecified symptoms and signs involving general sensations and perceptions | Billable |
| R45.0 | Nervousness | Billable |
| R45.1 | Restlessness and agitation | Billable |
| R45.2 | Unhappiness | Billable |
| R45.3 | Demoralization and apathy | Billable |
| R45.4 | Irritability and anger | Billable |
| R45.5 | Hostility | Billable |
| R45.6 | Violent behavior | Billable |
| R45.7 | State of emotional shock and stress, unspecified | Billable |
| R45.8 | Other symptoms and signs involving emotional state | Header |
| R45.81 | Low self-esteem | Billable |
| R45.82 | Worries | Billable |
| R45.83 | Excessive crying of child, adolescent or adult | Billable |
| R45.84 | Anhedonia | Billable |
| R45.85 | Homicidal and suicidal ideations | Header |
| R45.850 | Homicidal ideations | Billable |
| R45.851 | Suicidal ideations | Billable |
| R45.86 | Emotional lability | Billable |
| R45.87 | Impulsiveness | Billable |
| R45.88 | Nonsuicidal self-harm | Billable |
| R45.89 | Other symptoms and signs involving emotional state | Billable |
| R46.0 | Very low level of personal hygiene | Billable |
| R46.1 | Bizarre personal appearance | Billable |
| R46.2 | Strange and inexplicable behavior | Billable |
| R46.3 | Overactivity | Billable |
| R46.4 | Slowness and poor responsiveness | Billable |
| R46.5 | Suspiciousness and marked evasiveness | Billable |
| R46.6 | Undue concern and preoccupation with stressful events | Billable |
| R46.7 | Verbosity and circumstantial detail obscuring reason for contact | Billable |
| R46.8 | Other symptoms and signs involving appearance and behavior | Header |
| R46.81 | Obsessive-compulsive behavior | Billable |
| R46.89 | Other symptoms and signs involving appearance and behavior | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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