E74.829 ICD-10-CM Code: Other disorders of citrate metabolism
HCC Buddy Code Card
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FY 2026 Apr update / Endocrine, nutritional and metabolic diseases (E00-E89) / Metabolic disorders (E70-E88)
E74.829
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther disorders of citrate metabolism
A metabolic disorder affecting how the body processes or transports citrate, a key molecule in energy production, when the specific citrate metabolism problem is not further specified.
Buddy Insight
Other disorders of citrate metabolism captures citrate transport or processing disorders that are not classified as SLC13A5 deficiency.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
MappedHCC 23
RAF 0.194
ACA/HHS
MappedHCC 28
Varies by metal level
ESRD/PACE
MappedHCC 23
RAF 0.036
RXHCC
MappedHCC 43
RAF 0.063
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for E74.829 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for E74.829 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for E74.829 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for E74.829 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for E74.829 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for E74.829 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for E74.829 in this effective period.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is E74.829 an HCC code?
Yes. E74.829 maps to Other Significant Endocrine and Metabolic Disorders under the V24 model but is not retained in V28.
HCC Category Mapping
Each model's RAF is its CMS base weight for that model's standard population, so 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 segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
Work E74.829 in the Code Book — tabular path, V28 RAF, and MEAT checklist →
MEAT Criteria for E74.829
For E74.829to 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 E74.829 during that encounter, not just copy-forwarded from a problem list.
Coder workflow notes
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What This Code Means
E74.829 is the ICD-10-CM diagnosis code for other disorders of citrate metabolism. A metabolic disorder affecting how the body processes or transports citrate, a key molecule in energy production, when the specific citrate metabolism problem is not further specified. E74.829 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering metabolic disorders (e70-e88).
Under the older CMS-HCC V24 model, E74.829 maps to Other Significant Endocrine and Metabolic Disorders (HCC 23) with a community, non-dual, aged base RAF weight of 0.194. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
Use when citrate metabolism disorder is documented but doesn't meet criteria for E74.820. Because E74.829 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. 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, RAF weights, and MEAT documentation criteria for E74.829 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use when citrate metabolism disorder is documented but doesn't meet criteria for E74.820
- •Request clarification from the provider on whether genetic testing for SLC13A5 was performed
Clinical Significance
Other disorders of citrate metabolism captures citrate transport or processing disorders that are not classified as SLC13A5 deficiency. Citrate is a key metabolite in energy production (citric acid cycle), and defects in its metabolism can cause a range of metabolic complications. These ultra-rare conditions require specialized metabolic expertise for diagnosis and management.
Documentation Requirements
- ✓Specific citrate metabolism disorder identified by the provider
- ✓Biochemical evidence of abnormal citrate metabolism
- ✓Genetic testing results if available
- ✓Documentation of clinical manifestations and organ involvement
- ✓Current treatment plan and monitoring parameters
Commonly Confused Codes
- •E74.820: SLC13A5 Citrate Transporter Disorder: the most well-characterized citrate transport disorder with its own code
- •E74.89: Other specified disorders of carbohydrate metabolism: broader residual category
- •E74.4: Disorders of pyruvate metabolism and gluconeogenesis: related energy metabolism pathway but different mechanism
- •E88.89: Other specified metabolic disorders: more general metabolic code