F98.21 Rumination disorder of infancy and childhood

Billable ICD-10-CM code, FY2026.

Applicable to

• Rumination disorder in infancy or childhood, in remission

Excludes1 (never code together)

• rumination disorder in adults (F50.84)

Applies from F98 Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence

Excludes2 (not included here)

• breath-holding spells (R06.89)
• gender identity disorder of childhood (F64.2)
• Kleine-Levin syndrome (G47.13)
• obsessive-compulsive disorder (F42.-)
• sleep disorders not due to a substance or known physiological condition (F51.-)

Applies from F98.2 Other feeding disorders of infancy and childhood

Excludes2 (not included here)

• anorexia nervosa and other eating disorders (F50.-)
• feeding difficulties (R63.3-)
• feeding problems of newborn (P92.-)
• pica of infancy or childhood (F98.3)

Risk adjustment (HCC)

• RxHCC V08: HCC 133 — Anxiety and Other Psychiatric Disorders

MS-DRG index

Defines the logic of DRG(s) 882 in MDC 19.

Approximate ICD-9-CM (GEMs)

• 307.53 Rumination disorder (approximate)

Code annotations containing back-references to F98.21

Back-references to F98.21

• Type 1 Excludes: F50.84 Rumination disorder in adults ("rumination disorder in infancy and childhood (F98.21)")

Back-references to F98.2

• Type 2 Excludes: F50 Eating disorders ("feeding disorder in infancy or childhood (F98.2-)")
• Type 2 Excludes: R63.3 Feeding difficulties ("infant feeding disorder of nonorganic origin (F98.2-)")
• Type 1 Excludes: Z72.4 Inappropriate diet and eating habits ("behavioral eating disorders of infancy or childhood (F98.2.-F98.3)")

Diagnosis Index entries for F98.21

• Disorder (of) › eating (adult) (psychogenic) › child › rumination disorder (in remission)
• Disorder (of) › eating (adult) (psychogenic) › rumination › infancy or childhood (in remission)
• Disorder (of) › rumination (infant or child) (in remission)
• Rumination › disorder of infancy or childhood (in remission)

Nearby codes

• F98 Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence
• F98.0 Enuresis not due to a substance or known physiological condition
• F98.1 Encopresis not due to a substance or known physiological condition
• F98.2 Other feeding disorders of infancy and childhood
• F98.21 Rumination disorder of infancy and childhood (this code)
• F98.29 Other feeding disorders of infancy and early childhood
• F98.3 Pica of infancy and childhood
• F98.4 Stereotyped movement disorders
• F98.5 Adult onset fluency disorder
• F98.8 Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence