ICD code S92.002G – Left calcaneus fracture, delayed healing

Key takeaways

S92.002G is a billable ICD-10-CM code for an unspecified left calcaneus fracture at a subsequent encounter with documented delayed healing. It sits between routine healing (D) and nonunion (K).

Use the seventh character G only when the clinician explicitly documents delayed healing in the record. Without that wording, D or K fits, depending on how the fracture is healing.

Laterality errors, such as S92.001G for the right heel or S92.009G for an unspecified side, are a common denial trigger. Confirm left-side documentation before coding.

Pabau’s claims management software runs claim validation that catches missing or invalid details before a fracture aftercare claim is submitted.

ICD-10 code S92.002G: Code definition and clinical meaning

ICD-10 code S92.002G describes an unspecified fracture of the left calcaneus at a subsequent encounter, where the fracture is healing with delay. Each part of the code carries its own coding meaning:

Unspecified fracture means the operative or imaging report does not detail the fracture pattern. A radiologist may describe a “calcaneal fracture” without saying whether it is a body, sustentaculum or anterior process fracture. In that case, the unspecified code is appropriate. Coders should not assume a more specific code just to avoid an “unspecified” designation.

Subsequent encounter means active treatment is complete, and the patient is receiving routine care during the healing phase. This includes cast checks, physical therapy referrals, imaging to monitor union progress, and medication management.

Delayed healing means the fracture is not progressing toward union at the expected rate, as documented by the treating clinician. The ICD-10-CM Official Guidelines do not prescribe a specific number of weeks. Delayed healing is a clinical determination documented in the note.

Anatomy: The left calcaneus and why fractures occur

The calcaneus is the largest tarsal bone and bears the body’s full weight during standing and walking. It sits beneath the talus and projects backward to form the heel. Calcaneal fractures account for about 60% of all tarsal bone fractures, according to StatPearls.

The most common mechanism is axial loading, typically a fall from height that lands on the heel. Stress fractures occur in athletes or military recruits through repetitive loading without adequate rest.

The mechanism matters for coding because it drives the fracture pattern, which in turn drives specificity. When imaging does not specify the pattern, S92.002G is correct, or the matching sibling code for laterality and encounter type.

Any calcaneal fracture can heal more slowly than expected, and the clinical note should record what is slowing it. Contributing factors include:

• Open fracture contamination
• Diabetes
• Peripheral vascular disease
• Tobacco use
• Inadequate immobilization

These factors should appear in the clinical documentation when the treating clinician selects G as the seventh character.

Understanding the ICD-10 seventh character for calcaneus fractures

The seventh character is the most consequential coding decision for S92.002 and its siblings. Getting it wrong is a common reason a calcaneus fracture claim is denied on medical necessity grounds.

The ICD-10-CM tabular list, maintained for CMS ICD-10-CM coding, gives S92.002 these seventh characters:

The critical distinction is between G and K. Delayed healing means the bone is still trying to heal, but progress is slower than expected. Nonunion means healing has stopped entirely, typically confirmed by serial imaging showing no callus progression over three to six months.

G fits a note that reads “fracture showing delayed healing, will continue conservative management.” K fits a note that reads “established nonunion confirmed on CT, patient consented to revision ORIF.” The chart below matches common note wording to the seventh character it supports.

S92.002G vs adjacent codes: Choosing the right code

ICD-10 code S92.002G sits within a group of closely related calcaneus fracture codes. The table below shows the siblings coders confuse most often. For neighboring foot and ankle codes, browse our ICD-10-CM codes library.

The laterality distinction between S92.001G and S92.002G is a common payer edit trigger. Many EHR templates default to “unspecified side.” Confirm left-side documentation in the operative note, radiology report or clinical note before finalizing the code.

Excludes notes and ICD-10-CM coding guidelines for S92.002G

The S92 category carries coding guidance that affects how S92.002G can be used. Per the CDC/NCHS ICD-10-CM tabular list, S92 carries these Excludes2 notes:

• Excludes2 (may coexist): Fracture of ankle and malleolus (S82.-). A calcaneal fracture is coded to S92, because the calcaneus is a foot bone. If the patient also has an ankle or malleolar fracture, report it separately with an S82 code.
• Excludes2 (may coexist): Traumatic amputation of ankle and foot (S98.-). An amputation is not part of S92. When the patient has both injuries, both codes may be reported together.

Growth plate injuries follow a separate path. ICD-10-CM gives physeal fractures of the calcaneus their own subcategory, S99.0-. When imaging describes a growth plate fracture in a child, check that subcategory before settling on S92.002G.

The ICD-10-CM Official Guidelines for Coding and Reporting, Section I.C.19, govern fracture coding. Two rules apply directly to S92.002G:

• Seventh-character selection follows the encounter type, not the initial injury date. A patient seen for the 10th time, still in delayed healing, continues to receive S92.002G at every subsequent visit until healing status changes.
• A fracture not documented as displaced or nondisplaced defaults to displaced. For S92.002G, this distinction affects sibling codes with higher specificity but does not change the unspecified code itself.

CPT codes commonly paired with S92.002G

S92.002G is a diagnosis code. It pairs with CPT procedure codes that describe what was done at the subsequent encounter, most often an established-patient visit such as 99213. The table below lists the codes most commonly submitted alongside it.

A superbill for follow-up visits that lists the seventh character by encounter type helps prevent D-instead-of-G errors at the point of service. It also keeps the CPT and diagnosis codes for each visit side by side before the claim is built.

Documentation requirements for S92.002G

A claim for ICD-10 code S92.002G is likely to be denied if the medical record does not support each element of the code. The checklist below covers the elements payers audit on delayed-healing calcaneus fracture claims.

• Left-side confirmation: The clinical note, radiology report or operative record must state “left calcaneus” or “left heel.” Template notes that read “calcaneus fracture” without laterality do not support S92.002G.
• Subsequent encounter status: The note must show that active treatment is complete and the patient is in the healing and monitoring phase. Initial encounter notes (ER, first surgical visit) require character A or B, not G.
• Delayed healing documentation: The clinician must explicitly state delayed healing, delayed union, or that the fracture is not progressing as expected. Phrases such as “patient doing well,” “fracture healing normally” or “follow-up in six weeks” do not support G. They support D.
• Imaging reference: Radiology reports showing minimal or no callus formation, a persistent fracture line, or no bridging trabeculation substantiate the delayed healing claim. Include the imaging date and findings in the note.
• Fracture pattern note: If imaging does not specify the fracture pattern (body, sustentaculum, anterior process), document that the fracture is unspecified. This supports S92.00 rather than a more specific subcategory.

Delayed healing sometimes prompts an order for a bone growth stimulator (E0747, E0760). For Medicare claims, the Local Coverage Determinations (LCDs) for these devices may require additional documentation. Verify current LCD requirements with your Medicare Administrative Contractor (MAC) before billing.

Commercial payer prior-authorization rules for delayed-healing fracture management vary by plan and state. Always confirm them before ordering advanced interventions.

Common denial reasons for calcaneus fracture delayed healing claims

ICD-10 code S92.002G attracts a distinct set of denial patterns. Knowing them reduces preventable write-offs on delayed-healing calcaneal fracture encounters.

• Wrong seventh character (D instead of G): A frequent error. Coders default to D (routine healing) even when the note documents delayed progress. Read the note, and if the clinician describes slow or inadequate healing, G is correct.
• Missing laterality documentation: Using S92.002G when the note does not confirm the left side triggers a specificity denial. Query the clinician or pull the radiology report before coding laterality.
• Using S92.002G for initial encounters: Character G is reserved for subsequent encounters only. A visit where active treatment is still underway requires character A or B, even if delayed healing is already suspected.
• Mismatch between diagnosis and CPT code: Surgical codes 28415 and 28420 with S92.002G raise a medical necessity flag unless the note explains the escalation. The clinician must record why delayed healing warranted surgery.
• Absent imaging to support delayed healing: Some payers require contemporaneous imaging showing a lack of union progress to pay for G-coded visits. Filing without attaching or noting the relevant radiology report invites denial on audit.

How Pabau helps practices submit cleaner fracture aftercare claims

Many orthopedic and physical therapy practices code fracture aftercare from template notes. A missing laterality or a wrong seventh character then surfaces only when the remittance arrives, and the claim goes back for rework.

Pabau, the practice management platform we build, includes claims management software with claim validation that catches missing or invalid details before submission. Through Pabau’s integration with Claim.MD, our US clearinghouse partner, claims reach thousands of US payers from the same system.

Coders fix a missing detail while the chart is still open, instead of after a rejection. Denial management workflows then handle what still comes back, and submitting a clean claim on the first pass avoids a rework cycle.

Submit cleaner calcaneus fracture claims

Pabau’s claim validation catches missing or invalid details before your fracture aftercare claims are submitted. See how it works.

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Conclusion

Coding accuracy for calcaneus fracture aftercare lives in two places: the seventh character and the clinical note that justifies it. S92.002G is valid and billable, but only when the documentation confirms left-side delayed healing at a subsequent encounter.

The most reliable fix sits upstream of the coder. Build delayed-healing language and a laterality field into your orthopedic follow-up template, so the note supports G whenever it applies.

Claim validation then catches any missing or invalid details before submission. Book a demo to see how Pabau fits an orthopedic or physical therapy practice.

Continue your research

Need to understand how clean claims shorten the payment cycle? Clean claim submission guide walks through the pre-submission checks that catch errors before they reach the payer.

Managing delayed fracture billing across multiple visits? Medical billing documentation guide covers how to structure encounter notes so each visit’s billing aligns with the clinical record.

Looking for the right clearinghouse for orthopedic claims? Medical claims clearinghouse overview explains how clearinghouses check claims for missing or invalid details before they reach payers.

Decoding a remittance after a fracture claim is denied? Denial codes in medical billing explains what each code means and how to respond.

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