F40.24 ICD-10-CM Code: Situational type phobia
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Coding at a Glance
- Tabular directives
- 2 Excludes2
Coding instructions
Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for F40.24 in the official ICD-10-CM tabular list, quoted as published.
Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025
Notes without a marker are published on F40.24 itself; “inherited from” names the category or block whose note applies here.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- dysmorphophobia (nondelusional) (F45.22) Compare F40.24 vs F45.22 →
- nosophobia (F45.22) Compare F40.24 vs F45.22 →
Source: inherited from F40.2
Coder workflow for F40.24
MedCoder structured workflow — derived from this code’s own official record
Before you code F40.24
- F40.24 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).
ReviewF40.240, F40.241, F40.242, F40.243, F40.248
See the relationships section · Guide: How to choose an ICD-10-CM code →
Choose the right path
- Does the documentation support one of the more specific codes beneath F40.24?
Yes → Select that code and continue the checks below on its own page.
No → F40.24 cannot be reported as written; query for the specificity its subcategory needs.
Consider F40.24. Then confirm the code is valid for the date of service in the Verify section.
Documentation check
- The provider’s diagnostic statement
- Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Official instructions as workflow
Excludes2 — not part of F40.24(2 notes)
Coding workflow: The conditions named in this note are not included in F40.24. When the record documents both, both may be reported; the note is a boundary, not a prohibition.
CompareF45.22
See the official tabular notes · Guidelines I.A.12.b
Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.
Code Overview
MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.
Verify Before Coding
- Not billable as written — a more specific code is required: F40.240, F40.241, F40.242, F40.243, F40.248.
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.
Relationships & Classification
MedCoder structured relationships — computed from published CMS and AHRQ datasets
Other codes that name F40.24 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.
Referenced by 3 Excludes2 notes: F06.4 — Anxiety disorder due to known physiological condition (via F40.-), F90 — Attention-deficit hyperactivity disorders (via F40.-), F93.0 — Separation anxiety disorder of childhood (via F40.-).
These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.
Contextual Map
Every relationship of F40.24 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Run F40.24 with these 3 related codes in Claim Check
Hierarchy
- F01-F99 — Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) (F01-F99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40-F48 — Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
Referenced by Excludes2 notes
- F06.4 — Anxiety disorder due to known physiological condition[Excludes2](via F40.-): “anxiety disorders, not due to known physiological condition or unspecified (F40.-, F41.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- F90 — Attention-deficit hyperactivity disorders[Excludes2](via F40.-): “anxiety disorders (F40.-, F41.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- F93.0 — Separation anxiety disorder of childhood[Excludes2](via F40.-): “nonpsychotic mental disorders (F40-F48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
Nearest codes (31)
- F40 — Phobic anxiety disorders[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40.0 — Agoraphobia[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40.00 — Agoraphobia, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40.01 — Agoraphobia with panic disorder[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40.02 — Agoraphobia without panic disorder[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40.1 — Social phobias[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40.10 — Social phobia, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- F40.11 — Social phobia, generalized[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- and 23 more
Change history
- FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016
Common coding questions
Can F40.24 be billed directly?
No. F40.24 (Situational type phobia) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Sources for this page
Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.
- Code, title, tabular notes and index terms Official source data
- CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
- Claim edits Official source data
- CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
- Change history and date-of-service validity Official source data
- CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
- Comparisons, relationships and the contextual map MedCoder structured relationship
- Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
- Summary and FAQ answers MedCoder explanation
- Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.
Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates
Cite this page
Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.
MedCoder.ai. "F40.24 — Situational type phobia." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/f40.24-situational-type-phobia
Change history
- FY2016 — October 1, 2015In the code set at ICD-10-CM adoptionSituational type phobia
No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to F40.24 in its code family, with their registry titles.
- F40.23 — Blood, injection, injury type phobia
- F40.230 — Fear of blood
- F40.231 — Fear of injections and transfusions
- F40.232 — Fear of other medical care
- F40.233 — Fear of injury
- F40.240 — Claustrophobia
- F40.241 — Acrophobia
- F40.242 — Fear of bridges
- F40.243 — Fear of flying
- F40.248 — Other situational type phobia