F40.22 Natural environment type phobiaNon-billable header with 2 child codes.
F06.4 Anxiety disorder due to known physiological condition ("anxiety disorders, not due to known physiological condition or unspecified (F40.-, F41.-)")F90 Attention-deficit hyperactivity disorders ("anxiety disorders (F40.-, F41.-)")F93.0 Separation anxiety disorder of childhood ("nonpsychotic mental disorders (F40-F48)")F40.11 Social phobia, generalizedF40.2 Specific (isolated) phobiasF40.21 Animal type phobiaF40.210 ArachnophobiaF40.218 Other animal type phobiaF40.22 Natural environment type phobia (this code)F40.220 Fear of thunderstormsF40.228 Other natural environment type phobiaF40.23 Blood, injection, injury type phobiaF40.230 Fear of bloodF40.231 Fear of injections and transfusions