ICD-10-CM 2027
ICD-10 code for relationship disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › relationship”. Page updated September 29, 2026.
About coding relationship disorder
The ICD-10-CM code for relationship disorder is F68.8 (Other specified disorders of adult personality and behavior). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on F68.8.
Within F68, choose F68.8 (Other specified disorders of adult personality and behavior) only when documentation doesn't support a more specific option: factitious disorder imposed on self (F68.1) and factitious disorder imposed on another (F68.A).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 880 (Acute Adjustment Reaction and Psychosocial Dysfunction, relative weight 0.9306), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific relationship disorder codes (official index)
- due to sexual orientation F66 — Other sexual disorders
Common questions about relationship disorder ICD-10 codes
What is the ICD-10 code for relationship disorder?
- F68.8 — Other specified disorders of adult personality and behavior. More specific codes apply when the documentation supports them: F66.
Is F68.8 billable?
- Yes. F68.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F68.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F68.8 as a principal diagnosis.
Is F68.8 a CC or MCC?
- No. F68.8 is neither a CC nor an MCC under MS-DRG v44.0.