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E64.3 ICD-10-CM Code: Sequelae of rickets

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

Coding at a Glance

Tabular directives
1 Excludes2 · 1 code-first instruction

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 v43, Appendix B.

  • MS-DRG 553 — BONE DISEASES AND ARTHROPATHIES WITH MCC (MDC 08)
  • MS-DRG 554 — BONE DISEASES AND ARTHROPATHIES WITHOUT MCC (MDC 08)

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 E64.3 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on E64.3 itself; “inherited from” names the category or block whose note applies here.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Source: inherited from E50-E64

Code First

Underlying conditions that must be sequenced before this code.

  • condition resulting from (sequela) of malnutrition and other nutritional deficiencies

Source: inherited from E64

Coder workflow for E64.3

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

Choose the right path

  1. Is the underlying (etiologic) condition the Code First note names documented?
    Yes → Sequence the underlying condition first, then E64.3.
    No → Continue; do not add an underlying condition the record does not document.

Consider E64.3. Then 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 underlying (etiologic) condition
Named in the Code First note; sequenced before this code when documented (Guidelines I.A.13).

Official instructions as workflow

  • Excludes2 — not part of E64.3(1 note)

    Coding workflow: The conditions named in this note are not included in E64.3. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

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

  • Code First — sequencing check(1 note)

    Coding workflow: Check whether the underlying or etiologic condition the note names is documented. When it is, sequence it before E64.3. Do not add an underlying condition the record does not document.

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

Coding decision scenarios

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

Documentation: The underlying condition the Code First note names is documented alongside this condition.

Coding question: How are the two sequenced?

Path: Review the Code First note.

Reason: The underlying condition is sequenced first and the manifestation follows (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.

Code Overview

Sequelae of rickets is a billable ICD-10-CM diagnosis code (E64.3).

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 (51)

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.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

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 E64.3 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 5 Excludes1 notes across 3 chapters: E55 — Vitamin D deficiency, E55.0 — Rickets, active, E61 — Deficiency of other nutrient elements (via E64.-), M83 — Adult osteomalacia, Z72.4 — Inappropriate diet and eating habits (via E64.-).

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

Referenced by 1 Excludes2 note: E63 — Other nutritional deficiencies (via E64.-).

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

Referenced by 1 Code First instruction: G63 — Polyneuropathy in diseases classified elsewhere (via E64.-).

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.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 2 MS-DRGs: DRG 553 (MDC 08), DRG 554 (MDC 08).

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

Clinical classification (AHRQ CCSR):END017 — Sequela of malnutrition and other nutritional deficiencies (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 category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Sequela of malnutrition and other nutritional deficiencies).

E64.0 — Sequelae of protein-calorie malnutrition, E64.1 — Sequelae of vitamin A deficiency, E64.2 — Sequelae of vitamin C deficiency, E64.8 — Sequelae of other nutritional deficiencies, E64.9 — Sequelae of unspecified nutritional deficiency, E68 — Sequelae of hyperalimentation

Same Index main term, other category

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

B92 — Sequelae of leprosy (leprosy), B94.0 — Sequelae of trachoma (trachoma), B94.1 — Sequelae of viral encephalitis (viral, encephalitis), B94.2 — Sequelae of viral hepatitis (hepatitis, viral), B94.8 — Sequelae of other specified infectious and parasitic diseases (infectious disease, specified NEC), B94.9 — Sequelae of unspecified infectious and parasitic disease (parasitic disease), D72.0 — Genetic anomalies of leukocytes (May), D73.89 — Other diseases of spleen (spleen, acquired), E21.0 — Primary hyperparathyroidism (spine, due to or associated with, osteitis, fibrosa cystica), E55.0 — Rickets, active, E68 — Sequelae of hyperalimentation (hyperalimentation), E70.330 — Chediak-Higashi syndrome (Chédiak-Higashi), E72.09 — Other disorders of amino-acid transport (hypophosphatemic with nephrotic-glycosuric dwarfism), E76.219 — Morquio mucopolysaccharidoses, unspecified (Morquio-Brailsford type), E83.31 — Familial hypophosphatemia (vitamin-D-resistant), G09 — Sequelae of inflammatory diseases of central nervous system (meningitis, bacterial), G60.0 — Hereditary motor and sensory neuropathy (spine, due to or associated with, Charcot-Marie-Tooth disease), G93.89 — Other specified disorders of brain (brain, acquired), G95.89 — Other specified diseases of spinal cord (spinal, cord, acquired), G96.198 — Other disorders of meninges, not elsewhere classified (choroid, plexus, acquired), +624 more

Contextual Map

Every relationship of E64.3 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 E64.3 with these 7 related codes in Claim Check

Hierarchy

Index manifestation (10)

Referenced by Excludes1 notes

Referenced by Excludes2 notes

  • E63 — Other nutritional deficiencies[Excludes2](via E64.-): “sequelae of malnutrition and other nutritional deficiencies (E64.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Code First instructions

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue[MDC crossing]: “Diseases and Disorders of the Musculoskeletal System and Connective Tissue — 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. 18,508 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries (51)

  • Anomaly, anomalous (congenital) (unspecified type), pelvis NEC (bony), rachitic[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Bowleg (s) (acquired), rachitic[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Coxa, valga (acquired), sequelaeof rickets (late effect)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Coxa, vara (acquired), sequelaeof rickets (late effect)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Craniotabes (cause unknown), rachitic[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Cubitus, valgus (acquired), sequelaeof rickets (late effect)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Cubitus, varus (acquired), sequelaeof rickets (late effect)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Curvature, spine (acquired) (angular) (idiopathic) (incorrect) (postural), sequelaeof rickets (late effect)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • and 43 more

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 FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 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 — v43 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. "E64.3 — Sequelae of rickets." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/e64.3-sequelae-of-rickets

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Sequelae of rickets

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), 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 E64.3 in its code family, with their registry titles.

View all codes in the E64 family