Skip to main content

F84.3 ICD-10-CM Code: Other childhood disintegrative disorder

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

Coding at a Glance

Tabular directives
4 inclusion terms · 3 Excludes1 · 1 use-additional code · 1 code-also instruction
Risk adjustment
RxHCC V08 category 133

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v44, Appendix B.

  • MS-DRG 884 — ORGANIC DISTURBANCES AND INTELLECTUAL DISABILITY (MDC 19)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for F84.3 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on F84.3 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Dementia infantilis
  • Disintegrative psychosis
  • Heller's syndrome
  • Symbiotic psychosis

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Code Also

Additional codes that may be required to fully describe the encounter.

  • any associated medical condition and intellectual disabilities

Source: inherited from F84

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code to identify any associated neurological condition.

Coder workflow for F84.3

MedCoder structured workflow — derived from this code’s own official record

Before you code F84.3

  1. “Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on F84.3; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).

    ReviewF84.0, F84.2, F84.5

    See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

  2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with F84.3. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support a condition named in F84.3’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewF84.5, F84.0, F84.2

Consider F84.3. Then work the Use Additional Code note and review the Code Also note, and 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).
The conditions the Use Additional Code note names
Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.
Any detail beyond this code’s title
What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

  • Excludes1 — check before selecting F84.3(3 notes)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with F84.3: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareF84.5, F84.0, F84.2

    See the official tabular notes · Guidelines I.A.12.a

  • Use Additional Code — after identifying F84.3(1 note)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with F84.3 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

    See the official tabular notes · Guidelines I.A.13

  • Code Also — related condition(1 note)

    Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

    See the official tabular notes · Guidelines I.A.17

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: Both the condition F84.3 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewF84.5, F84.0, F84.2

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with F84.3?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

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.

Don’t confuse F84.3 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of F84.3 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • F84.5— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of Asperger's syndrome moves the case to F84.5; the two are not reported together unless documented as unrelated.

    Full comparison: F84.3 vs F84.5 →

  • F84.0— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of Autistic disorder moves the case to F84.0; the two are not reported together unless documented as unrelated.

    Full comparison: F84.3 vs F84.0 →

  • F84.2— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of Rett's syndrome moves the case to F84.2; the two are not reported together unless documented as unrelated.

    Full comparison: F84.3 vs F84.2 →

  • F84.9— Specificity relationship (Review)

    Overlapping diagnoses in the same category.

    Overlapping codes in the same category — the documentation decides which is the more specific fit.

    What moves you there: A record that documents no more than “Pervasive developmental disorder, unspecified” takes F84.9; specificity in the record moves it back here.

    Full comparison: F84.3 vs F84.9 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Code Overview

Other childhood disintegrative disorder is a billable ICD-10-CM diagnosis code (F84.3).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (6)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

  1. 1 Use Additional Code instruction — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
  2. 1 Code Also note — a second code may apply; the guidelines leave its sequencing to the circumstances of the encounter. See the Code Also notes
  3. 3 Excludes1 entries — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

  • Age-restricted: the Medicare Code Editor lists this as a pediatric (age 0-17) diagnosis; other ages are presumed incorrect.
  • CC as a secondary diagnosis (FY2027). Can raise the stay's MS-DRG severity tier.

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 F84.3 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 2 Excludes1 notes across 2 chapters: F84.2 — Rett's syndrome, Z55 — Problems related to education and literacy (via F84.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 5 Excludes2 notes: F80.1 — Expressive language disorder (via F84.-), F80.2 — Mixed receptive-expressive language disorder (via F84.-), F90 — Attention-deficit hyperactivity disorders (via F84.-), F91 — Conduct disorders (via F84.-), F94.0 — Selective mutism (via F84.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 1 Code First instruction: Z91.83 — Wandering in diseases classified elsewhere (via F84.-).

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

Referenced by 1 Use Additional Code instruction: Q87.87 — Hao-Fountain Syndrome (via F84.-).

These codes instruct coders to additionally report this code when it applies.

Referenced by 3 Code Also instructions across 3 chapters: G93.45 — Developmental and epileptic encephalopathy (via F84.-), QA0 — Neurodevelopmental disorders related to specific genetic pathogenic variants (via F84.-), Z15.1 — Genetic susceptibility to epilepsy and neurodevelopmental disorders (via F84.-).

These codes suggest coding this condition alongside when both are present.

MS-DRG Grouper Relationships (FY2027)

Potential MS-DRG participation — not a DRG assignment.

FY2027 MS-DRG: CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 294 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 1 MS-DRG: DRG 884 (MDC 19).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):MBD014 — Neurodevelopmental disorders (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical process (MS-DRG)

Acts as CC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

F80.4 — Speech and language development delay due to hearing loss, F80.82 — Social pragmatic communication disorder, F80.89 — Other developmental disorders of speech and language, F80.9 — Developmental disorder of speech and language, unspecified, F81.0 — Specific reading disorder, F81.2 — Mathematics disorder, F81.81 — Disorder of written expression, F81.89 — Other developmental disorders of scholastic skills, F82 — Specific developmental disorder of motor function, F84.0 — Autistic disorder, F84.5 — Asperger's syndrome, F84.8 — Other pervasive developmental disorders, F84.9 — Pervasive developmental disorder, unspecified, F88 — Other disorders of psychological development, F89 — Unspecified disorder of psychological development, F90.0 — Attention-deficit hyperactivity disorder, predominantly inattentive type, F90.1 — Attention-deficit hyperactivity disorder, predominantly hyperactive type, F90.2 — Attention-deficit hyperactivity disorder, combined type, F90.8 — Attention-deficit hyperactivity disorder, other type, F90.9 — Attention-deficit hyperactivity disorder, unspecified type, +273 more

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Neurodevelopmental disorders).

F80.89 — Other developmental disorders of speech and language, F80.9 — Developmental disorder of speech and language, unspecified, F81.0 — Specific reading disorder, F81.2 — Mathematics disorder, F81.81 — Disorder of written expression, F81.89 — Other developmental disorders of scholastic skills, F81.9 — Developmental disorder of scholastic skills, unspecified, F82 — Specific developmental disorder of motor function, F84.0 — Autistic disorder, F84.2 — Rett's syndrome, F84.5 — Asperger's syndrome, F84.8 — Other pervasive developmental disorders, F84.9 — Pervasive developmental disorder, unspecified, F88 — Other disorders of psychological development, F89 — Unspecified disorder of psychological development, F90.0 — Attention-deficit hyperactivity disorder, predominantly inattentive type, F90.1 — Attention-deficit hyperactivity disorder, predominantly hyperactive type, F90.2 — Attention-deficit hyperactivity disorder, combined type, F90.8 — Attention-deficit hyperactivity disorder, other type, F90.9 — Attention-deficit hyperactivity disorder, unspecified type, +24 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Dementia”, “Psychosis, psychotic”; these codes share that main term but sit in a different category of the Tabular List.

F25.8 — Other schizoaffective disorders (mixed schizophrenic and affective), F25.9 — Schizoaffective disorder, unspecified (schizoaffective), F28 — Other psychotic disorder not due to a substance or known physiological condition (involutional), F29 — Unspecified psychosis not due to a substance or known physiological condition, F30.2 — Manic episode, severe with psychotic symptoms (mania, manic), F30.8 — Other manic episodes (hypomanic), F31.89 — Other bipolar disorder (mania, manic, recurrent type), F32.3 — Major depressive disorder, single episode, severe with psychotic features (reactive, depressive), F33.3 — Major depressive disorder, recurrent, severe with psychotic symptoms (reactive, depressive, recurrent), F43.0 — Acute stress reaction (exhaustive), F44.9 — Dissociative and conversion disorder, unspecified (hysterical), F53.1 — Puerperal psychosis (puerperal), G10 — Huntington's disease (in, Huntington's disease or chorea), G20.A1 — Parkinson's disease without dyskinesia, without mention of fluctuations (in, Parkinson's disease), G20.C — Parkinsonism, unspecified (with, Parkinsonism), G31.01 — Pick's disease (in, Pick's), G31.09 — Other frontotemporal neurocognitive disorder (frontal), G31.83 — Neurocognitive disorder with Lewy bodies (Lewy body), G35.D — Multiple sclerosis, unspecified (in, multiple, sclerosis), M30.0 — Polyarteritis nodosa (in, polyarteritis nodosa), +123 more

Contextual Map

Every relationship of F84.3 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 F84.3 with these 14 related codes in Claim Check

Hierarchy

Excludes1

Referenced by Excludes1 notes

Referenced by Excludes2 notes

Referenced by Code First instructions

Referenced by Use Additional Code instructions

  • Q87.87 — Hao-Fountain Syndrome[Use Additional Code](via F84.-): “pervasive developmental disorders (F84.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027

Referenced by Code Also instructions

Clinical classification (CCSR)

MS-DRG Grouper

  • CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”— CMS MS-DRG Definitions Manual (Appendix C) · FY2027
  • DRG 884 — ORGANIC DISTURBANCES AND INTELLECTUAL DISABILITY[MS-DRG]: “ORGANIC DISTURBANCES AND INTELLECTUAL DISABILITY (MDC 19)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2027

MDC crossing

  • MDC 19 — Mental Diseases and Disorders[MDC crossing]: “Mental Diseases and Disorders — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2027

Index entries

  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety), infantile, infantilis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Disorder (of), childhood disintegrative NEC[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Disorder (of), disintegrative, childhood NEC[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Heller's disease or syndrome[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Psychosis, psychotic, disintegrative (childhood)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Psychosis, psychotic, symbiotic (childhood)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

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 FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44 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. "F84.3 — Other childhood disintegrative disorder." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/f84.3-other-childhood-disintegrative-disorder

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Other childhood disintegrative disorder

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, 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 F84.3 in its code family, with their registry titles.

View all codes in the F84 family