ICD-10/F43.89

F43.89 ICD 2026 Code: Other reactions to severe stress

F43.89 is the authoritative medical code for Other reactions to severe stress. This classification is used in medical billing and clinical recording to specify the clinical criteria for other reactions to severe stress (ICD-10-CM F43.89), ensuring healthcare documentation aligns with 2026 federal coding standards.

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Official Registry Overview & Definition

Other reactions to severe stress is a billable ICD-10-CM diagnosis code F43.89.

Codes in This Family (17)

Official ICD-10-CM classifications in the same code family as F43.89, with their registry titles.

  • F43 — Reaction to severe stress, and adjustment disorders
  • F43.0 — Acute stress reaction
  • F43.1 — Post-traumatic stress disorder (PTSD)
  • F43.10 — Post-traumatic stress disorder, unspecified
  • F43.11 — Post-traumatic stress disorder, acute
  • F43.12 — Post-traumatic stress disorder, chronic
  • F43.2 — Adjustment disorders
  • F43.20 — Adjustment disorder, unspecified
  • F43.21 — Adjustment disorder with depressed mood
  • F43.22 — Adjustment disorder with anxiety
  • F43.23 — Adjustment disorder with mixed anxiety and depressed mood
  • F43.24 — Adjustment disorder with disturbance of conduct
  • F43.25 — Adjustment disorder with mixed disturbance of emotions and conduct
  • F43.29 — Adjustment disorder with other symptoms
  • F43.8 — Other reactions to severe stress
  • F43.81 — Prolonged grief disorder
  • F43.9 — Reaction to severe stress, unspecified

Indexed Clinical Terms (2)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Disorder (of), trauma and stressor-related NOS, other specified
  • Reaction, stress (severe), specified NEC

Related Codes & Numerical Sequence (Crawl Map)

Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:

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