What is ICD-10 code F50.022?

F50.022 is the ICD-10-CM diagnosis code for Anorexia nervosa, binge eating/purging type, severe. Anorexia nervosa with binge eating and purging behaviors at severe level, indicating substantial functional impairment and significant medical complications from both restriction and purging. F50.022 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. F50.022 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. F50.022 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. F50.022 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 F50.022 map to under V28?

F50.022 maps to CMS-HCC V28 HCC 153 (Personality Disorders; Anorexia/Bulimia Nervosa). The category numbers, labels, and conditions come from the CMS-HCC V28 model file for payment year 2026.

2026 ICD-10-CM F50.022: Anorexia nervosa, binge

F50.022 maps to CMS-HCC V28 153. A source-labeled RAF reference is available. Confirm the documented diagnosis and applicable coding requirements. MEAT criteria · RAF Calculator · free HCC coding tools

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 lookupF50.022

Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59)

F50.022

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

Anorexia nervosa, binge eating/purging type, severe

Anorexia nervosa with binge eating and purging behaviors at severe level, indicating substantial functional impairment and significant medical complications from both restriction and purging.

Buddy Insight

Overview Risk Models Code Book Documentation Audit Notes Edition comparison

CMS-HCC V28

Mapped

HCC 153

Personality Disorders; Anorex...

Code-level coefficient reference

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

F50.0Anorexia nervosa F50.02Anorexia nervosa, binge eating/purging type F50.022Anorexia nervosa, binge eating/purging type, severe

Inclusion Terms

Official

Anorexia nervosa, binge eating/purging type, with a body mass index of 15.0-15.99 kg/m2

Excludes 2

Official

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99, F50
feeding difficulties (R63.3-)Inherited from F01-F99, F50
feeding disorder in infancy or childhood (F98.2-)Inherited from F01-F99, F50

Related Codes

Official

F50.020Anorexia nervosa, binge eating/purging type, mild F50.021Anorexia nervosa, binge eating/purging type, moderate F50.023Anorexia nervosa, binge eating/purging type, extreme F50.024Anorexia nervosa, binge eating/purging type, in remission F50.029Anorexia nervosa, binge eating/purging type, unspecified

Includes

Official

disorders of psychological developmentInherited from F01-F99

Excludes 1

Official

anorexia NOS (R63.0)Inherited from F50, F50.0, F50.02
feeding problems of newborn (P92.-)Inherited from F50, F50.0, F50.02
polyphagia (R63.2)Inherited from F50, F50.0, F50.02
loss of appetite (R63.0)Inherited from F50, F50.0, F50.02
psychogenic loss of appetite (F50.89)Inherited from F50, F50.0, F50.02
bulimia nervosa (F50.2-)Inherited from F50, F50.0, F50.02

Code First

Official

No Code First sequencing instructions are included in this display for F50.022. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for F50.022. Check the code and parent instructions in the Code Book.

Code Also

Official

No Code Also instructions are included in this display for F50.022. Check the code and parent instructions in the Code Book.

Buddy Documentation Tip

HCC Buddy guidance

Documentation of binge eating episodes and/or purging behaviors (vomiting, laxatives, diuretics) in the context of low body weight

Current BMI or weight documenting severity (BMI 15.00-15.99 kg/m2)

Distinction from bulimia nervosa (patient must meet low-weight criteria for anorexia nervosa)

Frequency of binge/purge episodes

MEAT Support

HCC Buddy guidance

Documentation of binge eating episodes and/or purging behaviors (vomiting, laxatives, diuretics) in the context of low body weight

Current BMI or weight documenting severity (BMI 15.00-15.99 kg/m2)

Distinction from bulimia nervosa (patient must meet low-weight criteria for anorexia nervosa)

Frequency of binge/purge episodes

Audit Caution

HCC Buddy guidance

Confusing with bulimia nervosa — the KEY distinction is that anorexia nervosa binge/purge type patients are significantly underweight

Not documenting the severity-specific BMI (BMI 15.00-15.99 kg/m2)

Failing to code medical complications of purging (hypokalemia, metabolic alkalosis, dental erosion, Mallory-Weiss tear) as additional diagnoses

Missing the binge/purge behaviors in documentation and incorrectly coding as restricting type

Common Mistakes

HCC Buddy guidance

F50.01x (Anorexia nervosa, restricting type) — NO binge/purge behaviors present in restricting type

F50.2x (Bulimia nervosa) — patient is at NORMAL or above-normal weight, unlike anorexia nervosa binge/purge type

F50.81x (Binge eating disorder) — no compensatory purging behaviors and typically overweight/obese

F50.00 (Anorexia nervosa, unspecified) — use the specific type code when binge/purge behaviors are documented

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 F50.022 an HCC code?

Yes. F50.022 (Anorexia nervosa, binge eating/purging type, severe) maps to HCC 153, Personality Disorders; Anorexia/Bulimia Nervosa under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.396. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes. It is billable for payment year 2026.

Coder answer: F50.022 is billable and maps to V28 HCC 153, Personality Disorders; Anorexia/Bulimia Nervosa. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code: F50.022
Description: Anorexia nervosa, binge eating/purging type, severe
HCC (V28): HCC 153 — Personality Disorders; Anorexia/Bulimia Nervosa
RAF reference coefficient: 0.396
Billable: Yes
Payment year: 2026

HCC Category Mapping

V28HCC 153, Personality Disorders; Anorexia/Bulimia Nervosa

0.396

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 F50.022 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT review for F50.022

For F50.022, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

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

Coder workflow notes

Get the V28 mapping + MEAT cheat sheet

One printable reference: check representative V28 mappings and the documentation reminders your note needs. Free, no card.

Free PDF. No card. Unsubscribe anytime.

What This Code Means

F50.022 is the ICD-10-CM diagnosis code for anorexia nervosa, binge eating/purging type, severe. Anorexia nervosa with binge eating and purging behaviors at severe level, indicating substantial functional impairment and significant medical complications from both restriction and purging. F50.022 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering behavioral syndromes associated with physiological disturbances and physical factors (f50-f59).

Under the CMS-HCC V28 risk adjustment model, F50.022 maps to Personality Disorders; Anorexia/Bulimia Nervosa (HCC 153) with a source-labeled community, non-dual, aged reference coefficient of 0.396. No V24 mapping is shown for F50.022; use the applicable model and payment year when reviewing the V28 mapping. For CY2026 non-PACE Medicare Advantage, CMS uses 100% of the 2024 CMS-HCC model (V28). PACE uses a separate model blend. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes.

Severe binge eating/purging type carries higher medical risk due to electrolyte imbalances and other purging-related complications. For F50.022, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F50.022 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Severe binge eating/purging type carries higher medical risk due to electrolyte imbalances and other purging-related complications
•Document specific purging methods and frequency to support severe severity designation

Clinical Significance

Anorexia nervosa, binge eating/purging type involves episodes of binge eating and/or purging (self-induced vomiting, laxative/diuretic misuse) in a patient who meets low-weight criteria for anorexia nervosa. Severe binge eating/purging type with BMI 15-15.99 kg/m2 carries extremely high medical risk from both malnutrition and purging-related electrolyte disturbances. This subtype carries additional risks of electrolyte imbalances, esophageal tears, and dental erosion compared to the restricting type.

Documentation Requirements

✓Documentation of binge eating episodes and/or purging behaviors (vomiting, laxatives, diuretics) in the context of low body weight
✓Current BMI or weight documenting severity (BMI 15.00-15.99 kg/m2)
✓Distinction from bulimia nervosa (patient must meet low-weight criteria for anorexia nervosa)
✓Frequency of binge/purge episodes
✓Medical monitoring for purging complications (electrolytes, dental health, esophageal integrity, cardiac status)

Commonly Confused Codes

•F50.01x (Anorexia nervosa, restricting type): NO binge/purge behaviors present in restricting type
•F50.2x (Bulimia nervosa): patient is at NORMAL or above-normal weight, unlike anorexia nervosa binge/purge type
•F50.81x (Binge eating disorder): no compensatory purging behaviors and typically overweight/obese
•F50.00 (Anorexia nervosa, unspecified): use the specific type code when binge/purge behaviors are documented
•E87.6 (Hypokalemia): common complication to code separately