ICD-10 Code for Auditory Hallucinations
Auditory hallucinations involve hearing things that are not actually present. This can include hearing voices or various other sounds.
In the International Classification of Diseases, 10th Revision (ICD-10), auditory hallucinations are classified under the code R44, which falls within the range R00-R99, "Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified." This chapter encompasses symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions for which no diagnosis classifiable elsewhere is recorded.
Signs and symptoms that clearly point to a specific diagnosis are assigned to a category in other chapters of the classification. Generally, categories in this chapter include less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'.
It is important to consult the Alphabetical Index to determine which symptoms and signs are to be allocated here and which to other chapters.
Excludes Notes in ICD-10
ICD-10 uses "excludes" notes to provide guidance on when certain codes should not be used together.
- Type 1 Excludes: A type 1 excludes note means "not coded here." It indicates that the excluded code should never be used at the same time as R44.
- Type 2 Excludes: A type 2 excludes note represents "not included here." It indicates that the condition excluded is not part of the condition it is excluded from, but a patient may have both conditions simultaneously. When a type 2 excludes note appears under a code, it is acceptable to use both the code (R44) and the excluded code together.
Additional Indicators
On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body. These indicators provide further detail about the diagnosis:
- G: Confirmed diagnosis
- V: Tentative diagnosis
- Z: Condition after
- A: Excluded diagnosis
- L: Left
- R: Right
- B: Both sides
Clinical Context and Coding Practices
Hallucinations are not always mental in origin; they can be physical. Ensure proper documentation, listing medications prescribed and the diagnosis range. If the diagnosis is schizophrenia, for example, hallucinations are already included, and you don't code them separately.
When providing care, it is essential to document appropriately, listing medications prescribed and the diagnosis range from F11 to F14, F16, and F17, linking with the description of care given. It seems you are doing this correctly with CPT 90791 and inpt psych codes 99231 -99233.
ICD-10 Coding Examples
Here's a table illustrating how ICD-10 codes might be used in different scenarios:
| Scenario | Primary ICD-10 Code | Additional ICD-10 Codes (if applicable) | Notes |
|---|---|---|---|
| Patient experiencing auditory hallucinations with a confirmed diagnosis of schizophrenia | F20.9 (Schizophrenia, unspecified) | None (hallucinations are inherent to the diagnosis) | Hallucinations are included within the schizophrenia diagnosis. |
| Patient experiencing auditory hallucinations due to drug-induced psychosis | F19.5 (Other psychoactive substance-induced psychotic disorder) | R44 (Auditory hallucinations) | Both codes can be used to specify the condition and the symptom. |
| Patient with tentative diagnosis of auditory hallucinations, left side | R44.0 (Auditory hallucinations) | R44.0-L | "L" indicates the left side. |
Note: This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.