Other mental disorders due to known physiological condition (F06) ICD-10-CM

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

• mental disorders due to endocrine disorder
• mental disorders due to exogenous hormone
• mental disorders due to exogenous toxic substance
• mental disorders due to primary cerebral disease
• mental disorders due to somatic illness
• mental disorders due to systemic disease affecting the brain

Code First

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

• the underlying physiological condition

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

• unspecified dementia F03

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

• delirium due to known physiological condition F05
• dementia as classified in F01 F02
• other mental disorders associated with alcohol and other psychoactive substances F10 F19