What is ICD-10 code F44.6?

F44.6 is the ICD-10-CM diagnosis code for Conversion disorder with sensory symptom or deficit. A condition where emotional stress causes loss of sensation, numbness, blindness, or deafness without any physical damage to nerves or sensory organs. F44.6 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. F44.6 is part of the FY2026 ICD-10-CM code set published by the CMS National Center for Health Statistics and used on Medicare, Medicaid, and commercial claims in the United States.

Yes. F44.6 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. F44.6 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

Which HCC does F44.6 map to under V28?

F44.6 has no payable CMS-HCC V28 mapping in the final FY2026 CMS file.

What RAF reference is published for F44.6?

F44.6 has no V28 reference coefficient because the final FY2026 source verifies no payable V28 mapping.

What is the V28 vs V24 difference for F44.6?

F44.6 has verified no payable V28 mapping in the final FY2026 source. Select a historical effective period before making any V24 comparison.

What documentation supports F44.6?

Specify the type of sensory loss (visual, auditory, tactile, olfactory, gustatory) Document that sensory testing and imaging have ruled out organic causes F44.6 is not a CMS-HCC V28 payment code in the verified current source, so MEAT is not the payment hook. Documentation still has to support the diagnosis if you report it.

2026 ICD-10-CM F44.6: Conversion disorder with sensory

F44.6 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software

ICD-10-CM Code View

HCC Buddy Code Card

Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.

Code lookupF44.6Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)

F44.6

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Conversion disorder with sensory symptom or deficit

A condition where emotional stress causes loss of sensation, numbness, blindness, or deafness without any physical damage to nerves or sensory organs.

Buddy Insight

CMS-HCC V28

N/A

—

Not risk-adjusted for this model/period.

Not mapped

CMS-HCC V24

Historical

Not used for standard CY2026 Medicare Advantage payment. Select a historical period to review V24.

Not used for CY2026 payment

ACA/HHS

N/A

—

Not risk-adjusted for this model/period.

Not mapped

ESRD/PACE

N/A

—

Not risk-adjusted for this model/period.

Not mapped

RXHCC

Mapped

HCC 133

Anxiety and Other Psychiatric...

Code-level coefficient reference

Code Book Path

Official

F44Dissociative and conversion disorders

F44.6Conversion disorder with sensory symptom or deficit

Inclusion Terms

Official

Conversion disorder with anesthesia or sensory loss
Conversion disorder with special sensory symptoms
Dissociative anesthesia and sensory loss
Psychogenic deafness

Excludes 2

Official

malingering [conscious simulation] (Z76.5)

Related Child Codes

Official

F44.0Dissociative amnesia

F44.1Dissociative fugue

F44.2Dissociative stupor

F44.4Conversion disorder with motor symptom or deficit

F44.5Conversion disorder with seizures or convulsions

Includes

Official

conversion hysteria
conversion reaction
hysteria
hysterical psychosis

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for F44.6 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for F44.6 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for F44.6 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for F44.6 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance

One or more sensory symptoms (numbness, blindness, deafness, reduced sensation, pain, etc.)

Clinical findings demonstrating incompatibility with recognized neurological conditions (e.g., non-anatomical sensory loss patterns, tubular visual fields, intact reflexes despite reported numbness)

Symptom not better explained by another medical or mental disorder

Results of sensory testing and neurological examination

MEAT Support

HCC Buddy guidance

One or more sensory symptoms (numbness, blindness, deafness, reduced sensation, pain, etc.)

Clinical findings demonstrating incompatibility with recognized neurological conditions (e.g., non-anatomical sensory loss patterns, tubular visual fields, intact reflexes despite reported numbness)

Symptom not better explained by another medical or mental disorder

Results of sensory testing and neurological examination

Audit Caution

HCC Buddy guidance

Diagnosing conversion disorder with sensory symptoms without adequate testing to rule out organic sensory pathology

Confusing functional sensory loss with malingering — conversion symptoms are involuntary

Not recognizing that functional and organic sensory deficits can coexist

Using F44.6 when the sensory symptom is better explained by a somatic symptom disorder (F45 category)

Common Mistakes

HCC Buddy guidance

F44.4 (Conversion disorder with motor symptom or deficit) — Motor symptoms (weakness, paralysis) vs. sensory symptoms (numbness, blindness)

F44.5 (Conversion disorder with seizures or convulsions) — Seizure presentations vs. sensory deficits

H54.7 (Unspecified visual loss) — Organic visual loss; use F44.6 when ophthalmologic evaluation demonstrates functional visual loss

G62.9 (Polyneuropathy, unspecified) — Organic neuropathy; F44.6 is for sensory loss without organic basis

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is F44.6 an HCC code?

F44.6 is not in the CMS-HCC V28 or V24 community payment model. F44.6 has a separate mapping under the Part D RxHCC model (HCC 133 (Anxiety and Other Psychiatric Disorders)); the applicable result needs member context.

Code: F44.6
Description: Conversion disorder with sensory symptom or deficit
HCC (V28): No CMS-HCC V28 mapping
RAF reference coefficient: —
Billable: Yes
Payment year: 2026

HCC Category Mapping

RxHCCHCC 133, Anxiety and Other Psychiatric Disorders

Not separately weighted

These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.

Work F44.6 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT Criteria for F44.6

For F44.6 to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.

MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
EEvaluate: test results, medication response, or physical findings reviewed by the provider
AAssess: explicit mention in the assessment or plan with acknowledgment of status
TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis

Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed F44.6 during that encounter, not just copy-forwarded from a problem list.

Coder workflow notes

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What This Code Means

F44.6 is the ICD-10-CM diagnosis code for conversion disorder with sensory symptom or deficit. A condition where emotional stress causes loss of sensation, numbness, blindness, or deafness without any physical damage to nerves or sensory organs. F44.6 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (f40-f48).

F44.6 has no mapping under the CMS-HCC V28 or V24 community payment models. F44.6 has a separate mapping under the Part D RxHCC model (HCC 133 (Anxiety and Other Psychiatric Disorders)); the applicable result needs member context. Do not assign V28 risk adjustment value from this page; verify the applicable model and payment year before using this code for risk adjustment.

Specify the type of sensory loss (visual, auditory, tactile, olfactory, gustatory).

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F44.6 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Specify the type of sensory loss (visual, auditory, tactile, olfactory, gustatory)
•Document that sensory testing and imaging have ruled out organic causes

Clinical Significance

Conversion disorder with sensory symptom or deficit involves neurological sensory symptoms such as numbness, blindness, deafness, or altered sensation that are incompatible with recognized neurological or sensory conditions. These symptoms are genuine and involuntary, not intentionally produced. Accurate differentiation from organic sensory loss requires comprehensive neurological and sensory evaluation.

Documentation Requirements

✓One or more sensory symptoms (numbness, blindness, deafness, reduced sensation, pain, etc.)
✓Clinical findings demonstrating incompatibility with recognized neurological conditions (e.g., non-anatomical sensory loss patterns, tubular visual fields, intact reflexes despite reported numbness)
✓Symptom not better explained by another medical or mental disorder
✓Results of sensory testing and neurological examination
✓Diagnostic workup results (MRI, visual evoked potentials, audiometry) as appropriate
✓Clinically significant distress or functional impairment

Commonly Confused Codes

•F44.4 (Conversion disorder with motor symptom or deficit): Motor symptoms (weakness, paralysis) vs. sensory symptoms (numbness, blindness)
•F44.5 (Conversion disorder with seizures or convulsions): Seizure presentations vs. sensory deficits
•H54.7 (Unspecified visual loss): Organic visual loss; use F44.6 when ophthalmologic evaluation demonstrates functional visual loss
•G62.9 (Polyneuropathy, unspecified): Organic neuropathy; F44.6 is for sensory loss without organic basis