The 2027 ICD-10-CM code set took effect on October 1, 2026. It has 190 new codes, 30 deleted codes and 4 revised titles. The number of billable codes went from 74,719 to 74,879.
Use these codes for dates of service from October 1, 2026 to September 30, 2027. The date of service decides the code set, not the date you send the claim. There is no grace period, so a deleted code on a claim for an October 2026 visit will be rejected.
| What changed | Code until Sept 30, 2026 | Codes from Oct 1, 2026 |
|---|---|---|
| Plantar fasciitis now has its own codes, by foot | M72.2 | M67.A01, M67.A02, M67.A09 (plantar fasciitis) and M72.20, M72.21, M72.22 (plantar fascial fibromatosis) |
| Adult BMI under 20 is split in two | Z68.1 | Z68.18 (BMI 18.4 or less) and Z68.19 (BMI 18.5 to 19.9) |
| Dilated cardiomyopathy | I42.0 | I42.00, I42.01, I42.09 (unspecified, familial-genetic, other) |
| Other cardiomyopathies | I42.8 | I42.81 (arrhythmogenic) and I42.89 |
| Other specified arrhythmias | I49.8 | I49.81 (Brugada syndrome), I49.82 (ventricular bigeminy), I49.89 |
| Qualitative platelet defects | D69.1 | D69.11 (Glanzmann thrombasthenia) and D69.19 |
| Other osteomyelitis now needs the side | M86.8X1 to M86.8X8 | 24 new codes, M86.8X11 to M86.8X89 (right, left or unspecified) |
| Toxic effect of other organic solvents | T52.8X1A to T52.8X4S | Split into alkenes (T52.81-), cycloparaffins (T52.82-) and other (T52.89-) |
| Sprain of the sternoclavicular joint or ligament | S23.420A, S23.420D, S23.420S | Deleted with no new code. Sternoclavicular joint sprains are coded in the existing S43.6- category, for example S43.61XA. |
These conditions had no code of their own before. Each one now has a specific code you can report.
| Code | Condition |
|---|---|
| QA1.71 | Lynch syndrome |
| QA1.790 | Familial cancer syndrome with a BRCA1 mutation |
| QA1.791 | Familial cancer syndrome with a BRCA2 mutation |
| QA1.792 | Li-Fraumeni syndrome |
| M04.3 | VEXAS syndrome |
| E89.830 | Post bariatric hypoglycemia |
| J34.830 | Odontogenic sinusitis (maxillary sinus, with ethmoid, frontal and sphenoid codes) |
| Z77.32 | Exposure to burn pits in a war theater |
| Z77.33 | Exposure to Agent Orange |
| Q87.A | Loeys-Dietz syndrome |
| I47.22 | Catecholaminergic polymorphic ventricular tachycardia (CPVT) |
| K76.83 | Intestinal failure-associated liver disease |
| Z86.17 | Personal history of C. difficile infection |
| J4B | Pulmonary mycetoma |
Other big groups of new codes: 28 for continuing a pregnancy after a vanishing twin (O31.4-), 16 for interstitial and other ectopic pregnancy by side (O00.1-), and new toxic effect codes for hexamethylene diisocyanate (T59.82-) and medetomidine (T65.85-).
| Code | Description |
|---|---|
| C78.31 | Secondary malignant neoplasm of larynx |
| C78.32 | Secondary malignant neoplasm of pharynx |
| C79.83 | Secondary malignant neoplasm of oral cavity |
| D69.11 | Glanzmann thrombasthenia |
| D69.19 | Other qualitative platelet defects |
| E89.830 | Post bariatric hypoglycemia |
| E89.838 | Other postprocedural hypoglycemia |
| F64.A | Gender identity disorder, in remission |
| I42.00 | Dilated cardiomyopathy, unspecified |
| I42.01 | Familial-genetic dilated cardiomyopathy |
| I42.09 | Other dilated cardiomyopathy |
| I42.81 | Arrhythmogenic cardiomyopathy |
| I42.89 | Other cardiomyopathies not elsewhere classified |
| I47.22 | Catecholaminergic polymorphic ventricular tachycardia [CPVT] |
| I49.81 | Brugada syndrome |
| I49.82 | Ventricular bigeminy |
| I49.89 | Other specified cardiac arrhythmias not elsewhere classified |
| J34.830 | Odontogenic sinusitis, maxillary sinus |
| J34.831 | Odontogenic sinusitis, ethmoid sinus |
| J34.832 | Odontogenic sinusitis, frontal sinus |
| J34.833 | Odontogenic sinusitis, sphenoid sinus |
| J34.839 | Odontogenic sinusitis, unspecified |
| J4B | Pulmonary mycetoma |
| K31.B | Hypertrophic pyloric stenosis, in childhood |
| K6A.01 | Prevesical abscess |
| K6A.09 | Other pelvic abscess |
| K6A.8 | Other diseases of the pelvis, not elsewhere classified |
| K74.0A | Hepatic fibrosis, moderate fibrosis |
| K76.83 | Intestinal failure-associated liver disease |
| L02.237 | Carbuncle of flank |
| M04.3 | VEXAS syndrome |
| M67.A01 | Plantar fasciitis, right foot |
| M67.A02 | Plantar fasciitis, left foot |
| M67.A09 | Plantar fasciitis, unspecified foot |
| M72.20 | Plantar fascial fibromatosis, unspecified foot |
| M72.21 | Plantar fascial fibromatosis, right foot |
| M72.22 | Plantar fascial fibromatosis, left foot |
| M86.8X11 | Other osteomyelitis, right shoulder |
| M86.8X12 | Other osteomyelitis, left shoulder |
| M86.8X19 | Other osteomyelitis, unspecified shoulder |
| M86.8X21 | Other osteomyelitis, right upper arm |
| M86.8X22 | Other osteomyelitis, left upper arm |
| M86.8X29 | Other osteomyelitis, unspecified upper arm |
| M86.8X31 | Other osteomyelitis, right forearm |
| M86.8X32 | Other osteomyelitis, left forearm |
| M86.8X39 | Other osteomyelitis, unspecified forearm |
| M86.8X41 | Other osteomyelitis, right hand |
| M86.8X42 | Other osteomyelitis, left hand |
| M86.8X49 | Other osteomyelitis, unspecified hand |
| M86.8X51 | Other osteomyelitis, right thigh |
| M86.8X52 | Other osteomyelitis, left thigh |
| M86.8X59 | Other osteomyelitis, unspecified thigh |
| M86.8X61 | Other osteomyelitis, right lower leg |
| M86.8X62 | Other osteomyelitis, left lower leg |
| M86.8X69 | Other osteomyelitis, unspecified lower leg |
| M86.8X71 | Other osteomyelitis, right ankle and foot |
| M86.8X72 | Other osteomyelitis, left ankle and foot |
| M86.8X79 | Other osteomyelitis, unspecified ankle and foot |
| M86.8X80 | Other osteomyelitis, skull |
| M86.8X81 | Other osteomyelitis, face and sinuses |
| M86.8X89 | Other osteomyelitis, other site |
| N99.860 | Intraoperative and postprocedural nipple ischemia |
| N99.861 | Intraoperative and postprocedural nipple necrosis |
| O00.121 | Right interstitial ectopic pregnancy without intrauterine pregnancy |
| O00.122 | Left interstitial ectopic pregnancy without intrauterine pregnancy |
| O00.129 | Unspecified interstitial ectopic pregnancy without intrauterine pregnancy |
| O00.131 | Right interstitial ectopic pregnancy with intrauterine pregnancy |
| O00.132 | Left interstitial ectopic pregnancy with intrauterine pregnancy |
| O00.139 | Unspecified interstitial ectopic pregnancy with intrauterine pregnancy |
| O00.31 | Cesarean scar ectopic pregnancy without intrauterine pregnancy |
| O00.32 | Cesarean scar ectopic pregnancy with intrauterine pregnancy |
| O00.41 | Cervical ectopic pregnancy without intrauterine pregnancy |
| O00.42 | Cervical ectopic pregnancy with intrauterine pregnancy |
| O00.511 | Right cornual ectopic pregnancy without intrauterine pregnancy |
| O00.512 | Left cornual ectopic pregnancy without intrauterine pregnancy |
| O00.519 | Unspecified cornual ectopic pregnancy without intrauterine pregnancy |
| O00.521 | Right cornual ectopic pregnancy with intrauterine pregnancy |
| O00.522 | Left cornual ectopic pregnancy with intrauterine pregnancy |
| O00.529 | Unspecified cornual ectopic pregnancy with intrauterine pregnancy |
| O31.40X0 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, not applicable or unspecified |
| O31.40X1 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 1 |
| O31.40X2 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 2 |
| O31.40X3 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 3 |
| O31.40X4 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 4 |
| O31.40X5 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, fetus 5 |
| O31.40X9 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, unspecified trimester, other fetus |
| O31.41X0 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, not applicable or unspecified |
| O31.41X1 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 1 |
| O31.41X2 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 2 |
| O31.41X3 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 3 |
| O31.41X4 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 4 |
| O31.41X5 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, fetus 5 |
| O31.41X9 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, first trimester, other fetus |
| O31.42X0 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, not applicable or unspecified |
| O31.42X1 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 1 |
| O31.42X2 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 2 |
| O31.42X3 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 3 |
| O31.42X4 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 4 |
| O31.42X5 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, fetus 5 |
| O31.42X9 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, second trimester, other fetus |
| O31.43X0 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, not applicable or unspecified |
| O31.43X1 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 1 |
| O31.43X2 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 2 |
| O31.43X3 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 3 |
| O31.43X4 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 4 |
| O31.43X5 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 5 |
| O31.43X9 | Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, other fetus |
| Q87.A | Loeys-Dietz syndrome |
| QA1.71 | Lynch syndrome |
| QA1.790 | Familial cancer syndrome with pathogenic BRCA1 mutation |
| QA1.791 | Familial cancer syndrome with pathogenic BRCA2 mutation |
| QA1.792 | Li Fraumeni syndrome |
| QA1.798 | Other inherited neoplasm predisposition syndrome of multiple systems |
| R78.72 | Abnormal gadolinium level in blood |
| T52.811A | Toxic effect of alkenes, accidental (unintentional), initial encounter |
| T52.811D | Toxic effect of alkenes, accidental (unintentional), subsequent encounter |
| T52.811S | Toxic effect of alkenes, accidental (unintentional), sequela |
| T52.812A | Toxic effect of alkenes, intentional self-harm, initial encounter |
| T52.812D | Toxic effect of alkenes, intentional self-harm, subsequent encounter |
| T52.812S | Toxic effect of alkenes, intentional self-harm, sequela |
| T52.813A | Toxic effect of alkenes, assault, initial encounter |
| T52.813D | Toxic effect of alkenes, assault, subsequent encounter |
| T52.813S | Toxic effect of alkenes, assault, sequela |
| T52.814A | Toxic effect of alkenes, undetermined, initial encounter |
| T52.814D | Toxic effect of alkenes, undetermined, subsequent encounter |
| T52.814S | Toxic effect of alkenes, undetermined, sequela |
| T52.821A | Toxic effect of cycloparaffins, accidental (unintentional), initial encounter |
| T52.821D | Toxic effect of cycloparaffins, accidental (unintentional), subsequent encounter |
| T52.821S | Toxic effect of cycloparaffins, accidental (unintentional), sequela |
| T52.822A | Toxic effect of cycloparaffins, intentional self-harm, initial encounter |
| T52.822D | Toxic effect of cycloparaffins, intentional self-harm, subsequent encounter |
| T52.822S | Toxic effect of cycloparaffins, intentional self-harm, sequela |
| T52.823A | Toxic effect of cycloparaffins, assault, initial encounter |
| T52.823D | Toxic effect of cycloparaffins, assault, subsequent encounter |
| T52.823S | Toxic effect of cycloparaffins, assault, sequela |
| T52.824A | Toxic effect of cycloparaffins, undetermined, initial encounter |
| T52.824D | Toxic effect of cycloparaffins, undetermined, subsequent encounter |
| T52.824S | Toxic effect of cycloparaffins, undetermined, sequela |
| T52.891A | Toxic effect of other organic solvents, accidental (unintentional), initial encounter |
| T52.891D | Toxic effect of other organic solvents, accidental (unintentional), subsequent encounter |
| T52.891S | Toxic effect of other organic solvents, accidental (unintentional), sequela |
| T52.892A | Toxic effect of other organic solvents, intentional self-harm, initial encounter |
| T52.892D | Toxic effect of other organic solvents, intentional self-harm, subsequent encounter |
| T52.892S | Toxic effect of other organic solvents, intentional self-harm, sequela |
| T52.893A | Toxic effect of other organic solvents, assault, initial encounter |
| T52.893D | Toxic effect of other organic solvents, assault, subsequent encounter |
| T52.893S | Toxic effect of other organic solvents, assault, sequela |
| T52.894A | Toxic effect of other organic solvents, undetermined, initial encounter |
| T52.894D | Toxic effect of other organic solvents, undetermined, subsequent encounter |
| T52.894S | Toxic effect of other organic solvents, undetermined, sequela |
| T59.821A | Toxic effect of hexamethylene diisocyanate, accidental (unintentional), initial encounter |
| T59.821D | Toxic effect of hexamethylene diisocyanate, accidental (unintentional), subsequent encounter |
| T59.821S | Toxic effect of hexamethylene diisocyanate, accidental (unintentional), sequela |
| T59.822A | Toxic effect of hexamethylene diisocyanate, intentional self-harm, initial encounter |
| T59.822D | Toxic effect of hexamethylene diisocyanate, intentional self-harm, subsequent encounter |
| T59.822S | Toxic effect of hexamethylene diisocyanate, intentional self-harm, sequela |
| T59.823A | Toxic effect of hexamethylene diisocyanate, assault, initial encounter |
| T59.823D | Toxic effect of hexamethylene diisocyanate, assault, subsequent encounter |
| T59.823S | Toxic effect of hexamethylene diisocyanate, assault, sequela |
| T59.824A | Toxic effect of hexamethylene diisocyanate, undetermined, initial encounter |
| T59.824D | Toxic effect of hexamethylene diisocyanate, undetermined, subsequent encounter |
| T59.824S | Toxic effect of hexamethylene diisocyanate, undetermined, sequela |
| T65.851A | Toxic effect of medetomidine, accidental (unintentional), initial encounter |
| T65.851D | Toxic effect of medetomidine, accidental (unintentional), subsequent encounter |
| T65.851S | Toxic effect of medetomidine, accidental (unintentional), sequela |
| T65.852A | Toxic effect of medetomidine, intentional self-harm, initial encounter |
| T65.852D | Toxic effect of medetomidine, intentional self-harm, subsequent encounter |
| T65.852S | Toxic effect of medetomidine, intentional self-harm, sequela |
| T65.853A | Toxic effect of medetomidine, assault, initial encounter |
| T65.853D | Toxic effect of medetomidine, assault, subsequent encounter |
| T65.853S | Toxic effect of medetomidine, assault, sequela |
| T65.854A | Toxic effect of medetomidine, undetermined, initial encounter |
| T65.854D | Toxic effect of medetomidine, undetermined, subsequent encounter |
| T65.854S | Toxic effect of medetomidine, undetermined, sequela |
| Z68.18 | Body mass index [BMI] 18.4 or less, adult |
| Z68.19 | Body mass index [BMI] 18.5-19.9, adult |
| Z77.013 | Contact with and (suspected) exposure to gadolinium |
| Z77.32 | Contact with and (suspected) exposure to burn pits in war theater |
| Z77.33 | Contact with and (suspected) exposure to Agent Orange |
| Z77.40 | Contact with and (suspected) exposure to unspecified blast overpressure |
| Z77.41 | Contact with and (suspected) exposure to low-level blast overpressure |
| Z77.42 | Contact with and (suspected) exposure to high-level blast overpressure |
| Z77.49 | Contact with and (suspected) exposure to other blast overpressure |
| Z86.17 | Personal history of Clostridioides difficile infection |
| Z87.8901 | Personal history of social gender transition |
| Z87.8902 | Personal history of medical gender transition |
| Z87.8903 | Personal history of surgical gender transition |
| Z87.8904 | Personal history of intersex surgery |
| Z87.8909 | Personal history of unspecified gender transition |
| Z87.893 | Personal history of gender detransition |
| Deleted code | Old description | Use instead (from Oct 1, 2026) |
|---|---|---|
| D69.1 | Qualitative platelet defects | D69.11, D69.19 |
| I42.0 | Dilated cardiomyopathy | I42.00, I42.01, I42.09 |
| I42.8 | Other cardiomyopathies | I42.81, I42.89 |
| I49.8 | Other specified cardiac arrhythmias | I49.81, I49.82, I49.89 |
| M72.2 | Plantar fascial fibromatosis | M67.A01, M67.A02, M67.A09, M72.20, M72.21, M72.22 |
| M86.8X1 | Other osteomyelitis, shoulder | M86.8X11, M86.8X12, M86.8X19 |
| M86.8X2 | Other osteomyelitis, upper arm | M86.8X21, M86.8X22, M86.8X29 |
| M86.8X3 | Other osteomyelitis, forearm | M86.8X31, M86.8X32, M86.8X39 |
| M86.8X4 | Other osteomyelitis, hand | M86.8X41, M86.8X42, M86.8X49 |
| M86.8X5 | Other osteomyelitis, thigh | M86.8X51, M86.8X52, M86.8X59 |
| M86.8X6 | Other osteomyelitis, lower leg | M86.8X61, M86.8X62, M86.8X69 |
| M86.8X7 | Other osteomyelitis, ankle and foot | M86.8X71, M86.8X72, M86.8X79 |
| M86.8X8 | Other osteomyelitis, other site | M86.8X80, M86.8X81, M86.8X89 |
| S23.420A | Sprain of sternoclavicular (joint) (ligament), initial encounter | No new code. Use the existing S43.6- codes for the sternoclavicular joint. |
| S23.420D | Sprain of sternoclavicular (joint) (ligament), subsequent encounter | No new code. Use the existing S43.6- codes for the sternoclavicular joint. |
| S23.420S | Sprain of sternoclavicular (joint) (ligament), sequela | No new code. Use the existing S43.6- codes for the sternoclavicular joint. |
| T52.8X1A | Toxic effect of other organic solvents, accidental (unintentional), initial encounter | T52.811A, T52.821A, T52.891A |
| T52.8X1D | Toxic effect of other organic solvents, accidental (unintentional), subsequent encounter | T52.811D, T52.821D, T52.891D |
| T52.8X1S | Toxic effect of other organic solvents, accidental (unintentional), sequela | T52.811S, T52.821S, T52.891S |
| T52.8X2A | Toxic effect of other organic solvents, intentional self-harm, initial encounter | T52.812A, T52.822A, T52.892A |
| T52.8X2D | Toxic effect of other organic solvents, intentional self-harm, subsequent encounter | T52.812D, T52.822D, T52.892D |
| T52.8X2S | Toxic effect of other organic solvents, intentional self-harm, sequela | T52.812S, T52.822S, T52.892S |
| T52.8X3A | Toxic effect of other organic solvents, assault, initial encounter | T52.813A, T52.823A, T52.893A |
| T52.8X3D | Toxic effect of other organic solvents, assault, subsequent encounter | T52.813D, T52.823D, T52.893D |
| T52.8X3S | Toxic effect of other organic solvents, assault, sequela | T52.813S, T52.823S, T52.893S |
| T52.8X4A | Toxic effect of other organic solvents, undetermined, initial encounter | T52.814A, T52.824A, T52.894A |
| T52.8X4D | Toxic effect of other organic solvents, undetermined, subsequent encounter | T52.814D, T52.824D, T52.894D |
| T52.8X4S | Toxic effect of other organic solvents, undetermined, sequela | T52.814S, T52.824S, T52.894S |
| Z68.1 | Body mass index [BMI] 19.9 or less, adult | Z68.18, Z68.19 |
| Z87.890 | Personal history of sex reassignment | Z87.8901, Z87.8902, Z87.8903, Z87.8904, Z87.8909 |
| Code | Old title | New title |
|---|---|---|
| L02.232 | Carbuncle of back [any part, except buttock] | Carbuncle of back [any part, except buttock and flank] |
| L03.312 | Cellulitis of back [any part except buttock] | Cellulitis of back [any part except buttock and flank] |
| L03.322 | Acute lymphangitis of back [any part except buttock] | Acute lymphangitis of back [any part except buttock and flank] |
| Z29.14 | Encounter for prophylactic rabies immune globin | Encounter for prophylactic rabies immune globulin |
An ICD-10-CM code has 3 to 7 characters. The first character is a letter. The first three characters are the category, and a dot comes after them.
| Part | Example | What it tells you |
|---|---|---|
| Category (3 characters) | E11 | Type 2 diabetes mellitus |
| Subcategory (4th to 6th) | E11.6, E11.62 | More detail: the type of complication |
| Full code | E11.621 | Type 2 diabetes with a foot ulcer. This is billable. |
| 7th character | S82.101A | Injury codes: A for the initial encounter, D for a later encounter, S for sequela |
| Placeholder X | T52.891A, S43.61XA | An X fills an empty spot so the 7th character stays in 7th place |
Only a code with nothing more specific below it is billable. E11 is a header, because it has subcodes. E11.9 is billable. If you put a header code on a claim, it will be rejected, or denied as CO-16 with remark code M76 (missing or invalid diagnosis).
This tool marks every code as billable or not billable. For a header code, it lists the billable codes below it, so you can pick the right one.
| Denial | What it usually means | Fix |
|---|---|---|
| CO-11 | The diagnosis does not fit the procedure | Check the link between each CPT line and its diagnosis pointer. |
| CO-50 | The payer says the service was not medically necessary for that diagnosis | Check the payer policy for covered diagnosis codes, then appeal with the notes. |
| CO-167 | The diagnosis is not covered | Confirm the code is the most specific one the notes support. |
| CO-16 with M76 | The diagnosis is missing, not valid, or a header code | Look the code up here and send a corrected claim with a billable code. |
Sources: the CDC NCHS 2027 ICD-10-CM files (code descriptions, order file and addenda), the FY 2027 ICD-10-CM Official Guidelines, and the CMS ICD-10 page. This tool is a lookup aid. Always code from the provider's documentation and the official guidelines.
Related tools: BMI ICD-10 Calculator · RVU Calculator & 2026 Medicare Fee Lookup · Global Period Calculator · Claim Frequency Code Tool · Denial Code Library
Written by Hassan Raza Awan
Founder — LegitMedBilling & IT Solutions
Hassan has 4+ years of hands-on U.S. medical billing experience — working claims, denials, credentialing, and payer follow-up for practices across the United States. Every guide he publishes is written from real remittances and payer behavior, not theory.
We code every claim to the current ICD-10-CM year, link each diagnosis to the right procedure and work the denials that slip through. The first week is free.
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