ICDcodes.org
FY2027

Q66.212Congenital metatarsus primus varus, left foot

Billable

Is Q66.212 billable?

Yes — Q66.212 is billable for FY2027. Q66.212 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Q66.212 may be submitted for encounters from October 1, 2026 through September 30, 2027.

Q66.212 at a glance

CodeQ66.212
DescriptionCongenital metatarsus primus varus, left foot
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does Q66.212 group to?

Q66.212 sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 564Other Musculoskeletal System and Connective Tissue Diagnoses with MCCmedical
  • 565Other Musculoskeletal System and Connective Tissue Diagnoses with CCmedical
  • 566Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCCmedical

How is Q66.212 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under Q66.21, the nearest indexed parent of Q66.212. Use them to find the family, then select the specific code.

  • Primus varus
  • Metatarsus, metatarsalvarusprimus

Excludes1 — never code together — inherited from Q66

The conditions below can never be reported together with Q66.212 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • reduction defects of feet (Q72.-)
  • valgus deformities (acquired) (M21.0-)
  • varus deformities (acquired) (M21.1-)

Excludes2 — not included here — inherited from Chapter 17

The conditions below are not part of Q66.212, but a patient may have both at the same time. When documentation supports it, Q66.212 and the excluded code may both be reported.

  • inborn errors of metabolism (E70-E88)

How long has Q66.212 existed?

Q66.212 first appears in FY2021 (FY2020 is not available, so it may have appeared then).

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the Q66.21 family? (2)