ICD-10 F50.00
Billable / Specific CCAnorexia nervosa, unspecified
About ICD-10-CM F50.00
ICD-10-CM code F50.00 represents Anorexia nervosa, unspecified. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F50). The 2026 edition of ICD-10-CM F50.00 became effective on October 1, 2025.
Coding Tips for F50.00
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
F50.00 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inpatient DRG Impact, CC
codes Anorexia nervosa, unspecified. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for F50.00
Local Coverage Determinations (LCDs) from CMS MACs that list F50.00 as a covered diagnosis.
Showing top 10 of 152 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F50.00.
2 Aetna
2 Cigna
5 Medicare
CPT Codes Commonly Billed with F50.00
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 90834 Psychotherapy 45 min — GAD, anxiety, MDD, recurrent depression, PTSD, adjustment disorder, BPD, OCD, bipolar, ADHD, autism, anorexia, bulimia Psychiatry
- 90837 Psychotherapy 60 min — same as 90834 plus substance use disorders, severe depression Psychiatry
- 90791 Psychiatric diagnostic evaluation — any mental health dx for initial assessment, suicidal ideation, hallucinations, antisocial behavior Psychiatry
- 90847 Family psychotherapy with patient — anxiety, depression, adjustment, relationship problems, substance use, eating disorder, conduct disorder, separation anxiety Psychiatry
Convert F50.00 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| F50.00 | 3071 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F50.00
Other codes in section F50-F59 (Behavioral syndromes associated with physiological disturbances and physical factors).
ICD-10 F50.00, Billing FAQ
Is ICD-10 code F50.00 billable? +
Yes, F50.00 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Is F50.00 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with F50.00? +
Procedures frequently paired with F50.00 include: 90834, 90837, 90791, 90847.
What ICD-9 codes does F50.00 map to? +
Per CMS GEMs, F50.00 maps to ICD-9 codes: 3071. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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