F06.1 — Catatonic disorder due to known physiological condition
F06.1 is a billable, specific ICD-10-CM code for catatonic disorder due to known physiological condition. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Catatonia associated with another mental disorder
- Catatonia NOS
Excludes1 inherited from the categories above F06.1
These are not written on F06.1, but they bind it: a note on a category applies to every code beneath it. Billing F06.1 with anything listed here is a denial.
Excludes2 inherited from the categories above F06.1
Also inherited, and the opposite of Excludes1: these conditions are not part of F06.1, but a patient can have both, so you may code both.
Risk adjustment
F06.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
F06.1 is named in 18 Medicare coverage policies — 17 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56612Billing and Coding: CT of the Head
- A56614Billing and Coding: Psychiatric Inpatient Hospitalization
How F06.1 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F06.1.
- Catatonic›disorder due to known physiologic condition
- Disorder›catatonia(due to known physiological condition) (with another mental disorder)
- Disorder›catatonic NOS
- Disorder›catatonic NOS›due to known physiological condition(secondary to)
- Disorder›catatonic NOS›organic NOS
- Disorder›organic›catatonic NOS
Code history
F06.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share F06. If F06.1 is not quite right, the correct code is usually one of these.
- F06.0Psychotic disorder with hallucinations due to known physiological condition
- F06.2Psychotic disorder with delusions due to known physiological condition
- F06.3Mood disorder due to known physiological condition
- F06.4Anxiety disorder due to known physiological condition
- F06.7Mild neurocognitive disorder due to known physiological condition
- F06.8Other specified mental disorders due to known physiological condition
Questions about F06.1
- Is F06.1 a billable ICD-10-CM code?
- Yes. F06.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F06.1 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mental disorders due to known physiological conditions (F01-F09).
- What cannot be coded together with F06.1?
- F06.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above F06.1 (F06) and apply to it just the same.