October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

H40-H42 — Glaucoma

Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in range

253

No clinical group

61

A period cannot be grouped from these.

Barred as primary

0

CMS rejects these in the primary position.

Where these codes group

192 of the 253 codes in H40-H42 group to MMTA - Other. A further 61 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.

Code families in H40-H42

One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.

Every code in H40-H42

Descriptions are CMS’s own, abbreviated as CMS abbreviates them.

CodeDescriptionClinical groupPrimary position
H40001Preglaucoma, unspecified, right eyeACan lead a claim
H40002Preglaucoma, unspecified, left eyeACan lead a claim
H40003Preglaucoma, unspecified, bilateralACan lead a claim
H40009Preglaucoma, unspecified, unspecified eyeNoneCannot lead a claim
H40011Open angle with borderline findings, low risk, right eyeACan lead a claim
H40012Open angle with borderline findings, low risk, left eyeACan lead a claim
H40013Open angle with borderline findings, low risk, bilateralACan lead a claim
H40019Open angle with borderline findings, low risk, unsp eyeNoneCannot lead a claim
H40021Open angle with borderline findings, high risk, right eyeACan lead a claim
H40022Open angle with borderline findings, high risk, left eyeACan lead a claim
H40023Open angle with borderline findings, high risk, bilateralACan lead a claim
H40029Open angle with borderline findings, high risk, unsp eyeNoneCannot lead a claim
H40031Anatomical narrow angle, right eyeACan lead a claim
H40032Anatomical narrow angle, left eyeACan lead a claim
H40033Anatomical narrow angle, bilateralACan lead a claim
H40039Anatomical narrow angle, unspecified eyeNoneCannot lead a claim
H40041Steroid responder, right eyeACan lead a claim
H40042Steroid responder, left eyeACan lead a claim
H40043Steroid responder, bilateralACan lead a claim
H40049Steroid responder, unspecified eyeNoneCannot lead a claim
H40051Ocular hypertension, right eyeACan lead a claim
H40052Ocular hypertension, left eyeACan lead a claim
H40053Ocular hypertension, bilateralACan lead a claim
H40059Ocular hypertension, unspecified eyeNoneCannot lead a claim
H40061Primary angle closure without glaucoma damage, right eyeACan lead a claim
H40062Primary angle closure without glaucoma damage, left eyeACan lead a claim
H40063Primary angle closure without glaucoma damage, bilateralACan lead a claim
H40069Primary angle closure without glaucoma damage, unsp eyeNoneCannot lead a claim
H4010X0Unspecified open-angle glaucoma, stage unspecifiedACan lead a claim
H4010X1Unspecified open-angle glaucoma, mild stageACan lead a claim
H4010X2Unspecified open-angle glaucoma, moderate stageACan lead a claim
H4010X3Unspecified open-angle glaucoma, severe stageACan lead a claim
H4010X4Unspecified open-angle glaucoma, indeterminate stageACan lead a claim
H401110Primary open-angle glaucoma, right eye, stage unspecifiedACan lead a claim
H401111Primary open-angle glaucoma, right eye, mild stageACan lead a claim
H401112Primary open-angle glaucoma, right eye, moderate stageACan lead a claim
H401113Primary open-angle glaucoma, right eye, severe stageACan lead a claim
H401114Primary open-angle glaucoma, right eye, indeterminate stageACan lead a claim
H401120Primary open-angle glaucoma, left eye, stage unspecifiedACan lead a claim
H401121Primary open-angle glaucoma, left eye, mild stageACan lead a claim
H401122Primary open-angle glaucoma, left eye, moderate stageACan lead a claim
H401123Primary open-angle glaucoma, left eye, severe stageACan lead a claim
H401124Primary open-angle glaucoma, left eye, indeterminate stageACan lead a claim
H401130Primary open-angle glaucoma, bilateral, stage unspecifiedACan lead a claim
H401131Primary open-angle glaucoma, bilateral, mild stageACan lead a claim
H401132Primary open-angle glaucoma, bilateral, moderate stageACan lead a claim
H401133Primary open-angle glaucoma, bilateral, severe stageACan lead a claim
H401134Primary open-angle glaucoma, bilateral, indeterminate stageACan lead a claim
H401190Primary open-angle glaucoma, unsp, stage unspecifiedNoneCannot lead a claim
H401191Primary open-angle glaucoma, unspecified eye, mild stageNoneCannot lead a claim
H401192Primary open-angle glaucoma, unspecified eye, moderate stageNoneCannot lead a claim
H401193Primary open-angle glaucoma, unspecified eye, severe stageNoneCannot lead a claim
H401194Primary open-angle glaucoma, unsp, indeterminate stageNoneCannot lead a claim
H401210Low-tension glaucoma, right eye, stage unspecifiedACan lead a claim
H401211Low-tension glaucoma, right eye, mild stageACan lead a claim
H401212Low-tension glaucoma, right eye, moderate stageACan lead a claim
H401213Low-tension glaucoma, right eye, severe stageACan lead a claim
H401214Low-tension glaucoma, right eye, indeterminate stageACan lead a claim
H401220Low-tension glaucoma, left eye, stage unspecifiedACan lead a claim
H401221Low-tension glaucoma, left eye, mild stageACan lead a claim
H401222Low-tension glaucoma, left eye, moderate stageACan lead a claim
H401223Low-tension glaucoma, left eye, severe stageACan lead a claim
H401224Low-tension glaucoma, left eye, indeterminate stageACan lead a claim
H401230Low-tension glaucoma, bilateral, stage unspecifiedACan lead a claim
H401231Low-tension glaucoma, bilateral, mild stageACan lead a claim
H401232Low-tension glaucoma, bilateral, moderate stageACan lead a claim
H401233Low-tension glaucoma, bilateral, severe stageACan lead a claim
H401234Low-tension glaucoma, bilateral, indeterminate stageACan lead a claim
H401290Low-tension glaucoma, unspecified eye, stage unspecifiedNoneCannot lead a claim
H401291Low-tension glaucoma, unspecified eye, mild stageNoneCannot lead a claim
H401292Low-tension glaucoma, unspecified eye, moderate stageNoneCannot lead a claim
H401293Low-tension glaucoma, unspecified eye, severe stageNoneCannot lead a claim
H401294Low-tension glaucoma, unspecified eye, indeterminate stageNoneCannot lead a claim
H401310Pigmentary glaucoma, right eye, stage unspecifiedACan lead a claim
H401311Pigmentary glaucoma, right eye, mild stageACan lead a claim
H401312Pigmentary glaucoma, right eye, moderate stageACan lead a claim
H401313Pigmentary glaucoma, right eye, severe stageACan lead a claim
H401314Pigmentary glaucoma, right eye, indeterminate stageACan lead a claim
H401320Pigmentary glaucoma, left eye, stage unspecifiedACan lead a claim
H401321Pigmentary glaucoma, left eye, mild stageACan lead a claim
H401322Pigmentary glaucoma, left eye, moderate stageACan lead a claim
H401323Pigmentary glaucoma, left eye, severe stageACan lead a claim
H401324Pigmentary glaucoma, left eye, indeterminate stageACan lead a claim
H401330Pigmentary glaucoma, bilateral, stage unspecifiedACan lead a claim
H401331Pigmentary glaucoma, bilateral, mild stageACan lead a claim
H401332Pigmentary glaucoma, bilateral, moderate stageACan lead a claim
H401333Pigmentary glaucoma, bilateral, severe stageACan lead a claim
H401334Pigmentary glaucoma, bilateral, indeterminate stageACan lead a claim
H401390Pigmentary glaucoma, unspecified eye, stage unspecifiedNoneCannot lead a claim
H401391Pigmentary glaucoma, unspecified eye, mild stageNoneCannot lead a claim
H401392Pigmentary glaucoma, unspecified eye, moderate stageNoneCannot lead a claim
H401393Pigmentary glaucoma, unspecified eye, severe stageNoneCannot lead a claim
H401394Pigmentary glaucoma, unspecified eye, indeterminate stageNoneCannot lead a claim
H401410Capslr glaucoma w/pseudxf lens, right eye, stage unspACan lead a claim
H401411Capslr glaucoma w/pseudxf lens, right eye, mild stageACan lead a claim
H401412Capslr glaucoma w/pseudxf lens, right eye, moderate stageACan lead a claim
H401413Capslr glaucoma w/pseudxf lens, right eye, severe stageACan lead a claim
H401414Capslr glaucoma w/pseudxf lens, r eye, indeterminate stageACan lead a claim
H401420Capslr glaucoma w/pseudxf lens, left eye, stage unspACan lead a claim
H401421Capslr glaucoma w/pseudxf lens, left eye, mild stageACan lead a claim
H401422Capslr glaucoma w/pseudxf lens, left eye, moderate stageACan lead a claim
H401423Capslr glaucoma w/pseudxf lens, left eye, severe stageACan lead a claim
H401424Capslr glaucoma w/pseudxf lens, l eye, indeterminate stageACan lead a claim
H401430Capslr glaucoma w/pseudxf lens, bilateral, stage unspACan lead a claim
H401431Capslr glaucoma w/pseudxf lens, bilateral, mild stageACan lead a claim
H401432Capslr glaucoma w/pseudxf lens, bilateral, moderate stageACan lead a claim
H401433Capslr glaucoma w/pseudxf lens, bilateral, severe stageACan lead a claim
H401434Capslr glaucoma w/pseudxf lens, bi, indeterminate stageACan lead a claim
H401490Capslr glaucoma w/pseudxf lens, unsp eye, stage unspNoneCannot lead a claim
H401491Capslr glaucoma w/pseudxf lens, unsp eye, mild stageNoneCannot lead a claim
H401492Capslr glaucoma w/pseudxf lens, unsp eye, moderate stageNoneCannot lead a claim
H401493Capslr glaucoma w/pseudxf lens, unsp eye, severe stageNoneCannot lead a claim
H401494Capslr glaucoma w/pseudxf lens, unsp eye, indeterminate stgNoneCannot lead a claim
H40151Residual stage of open-angle glaucoma, right eyeACan lead a claim
H40152Residual stage of open-angle glaucoma, left eyeACan lead a claim
H40153Residual stage of open-angle glaucoma, bilateralACan lead a claim
H40159Residual stage of open-angle glaucoma, unspecified eyeNoneCannot lead a claim
H4020X0Unsp primary angle-closure glaucoma, stage unspecifiedACan lead a claim
H4020X1Unspecified primary angle-closure glaucoma, mild stageACan lead a claim
H4020X2Unspecified primary angle-closure glaucoma, moderate stageACan lead a claim
H4020X3Unspecified primary angle-closure glaucoma, severe stageACan lead a claim
H4020X4Unsp primary angle-closure glaucoma, indeterminate stageACan lead a claim
H40211Acute angle-closure glaucoma, right eyeACan lead a claim
H40212Acute angle-closure glaucoma, left eyeACan lead a claim
H40213Acute angle-closure glaucoma, bilateralACan lead a claim
H40219Acute angle-closure glaucoma, unspecified eyeNoneCannot lead a claim
H402210Chronic angle-closure glaucoma, right eye, stage unspecifiedACan lead a claim
H402211Chronic angle-closure glaucoma, right eye, mild stageACan lead a claim
H402212Chronic angle-closure glaucoma, right eye, moderate stageACan lead a claim
H402213Chronic angle-closure glaucoma, right eye, severe stageACan lead a claim
H402214Chronic angle-closure glaucoma, r eye, indeterminate stageACan lead a claim
H402220Chronic angle-closure glaucoma, left eye, stage unspecifiedACan lead a claim
H402221Chronic angle-closure glaucoma, left eye, mild stageACan lead a claim
H402222Chronic angle-closure glaucoma, left eye, moderate stageACan lead a claim
H402223Chronic angle-closure glaucoma, left eye, severe stageACan lead a claim
H402224Chronic angle-closure glaucoma, l eye, indeterminate stageACan lead a claim
H402230Chronic angle-closure glaucoma, bilateral, stage unspecifiedACan lead a claim
H402231Chronic angle-closure glaucoma, bilateral, mild stageACan lead a claim
H402232Chronic angle-closure glaucoma, bilateral, moderate stageACan lead a claim
H402233Chronic angle-closure glaucoma, bilateral, severe stageACan lead a claim
H402234Chronic angle-closure glaucoma, bi, indeterminate stageACan lead a claim
H402290Chronic angle-closure glaucoma, unsp eye, stage unspecifiedNoneCannot lead a claim
H402291Chronic angle-closure glaucoma, unspecified eye, mild stageNoneCannot lead a claim
H402292Chronic angle-closure glaucoma, unsp eye, moderate stageNoneCannot lead a claim
H402293Chronic angle-closure glaucoma, unsp eye, severe stageNoneCannot lead a claim
H402294Chr angle-closure glaucoma, unsp eye, indeterminate stageNoneCannot lead a claim
H40231Intermittent angle-closure glaucoma, right eyeACan lead a claim
H40232Intermittent angle-closure glaucoma, left eyeACan lead a claim
H40233Intermittent angle-closure glaucoma, bilateralACan lead a claim
H40239Intermittent angle-closure glaucoma, unspecified eyeNoneCannot lead a claim
H40241Residual stage of angle-closure glaucoma, right eyeACan lead a claim
H40242Residual stage of angle-closure glaucoma, left eyeACan lead a claim
H40243Residual stage of angle-closure glaucoma, bilateralACan lead a claim
H40249Residual stage of angle-closure glaucoma, unspecified eyeNoneCannot lead a claim
H4030X0Glaucoma secondary to eye trauma, unsp eye, stage unspNoneCannot lead a claim
H4030X1Glaucoma secondary to eye trauma, unsp eye, mild stageNoneCannot lead a claim
H4030X2Glaucoma secondary to eye trauma, unsp eye, moderate stageNoneCannot lead a claim
H4030X3Glaucoma secondary to eye trauma, unsp eye, severe stageNoneCannot lead a claim
H4030X4Glaucoma sec to eye trauma, unsp eye, indeterminate stageNoneCannot lead a claim
H4031X0Glaucoma secondary to eye trauma, right eye, stage unspACan lead a claim
H4031X1Glaucoma secondary to eye trauma, right eye, mild stageACan lead a claim
H4031X2Glaucoma secondary to eye trauma, right eye, moderate stageACan lead a claim
H4031X3Glaucoma secondary to eye trauma, right eye, severe stageACan lead a claim
H4031X4Glaucoma secondary to eye trauma, r eye, indeterminate stageACan lead a claim
H4032X0Glaucoma secondary to eye trauma, left eye, stage unspACan lead a claim
H4032X1Glaucoma secondary to eye trauma, left eye, mild stageACan lead a claim
H4032X2Glaucoma secondary to eye trauma, left eye, moderate stageACan lead a claim
H4032X3Glaucoma secondary to eye trauma, left eye, severe stageACan lead a claim
H4032X4Glaucoma sec to eye trauma, left eye, indeterminate stageACan lead a claim
H4033X0Glaucoma secondary to eye trauma, bilateral, stage unspACan lead a claim
H4033X1Glaucoma secondary to eye trauma, bilateral, mild stageACan lead a claim
H4033X2Glaucoma secondary to eye trauma, bilateral, moderate stageACan lead a claim
H4033X3Glaucoma secondary to eye trauma, bilateral, severe stageACan lead a claim
H4033X4Glaucoma secondary to eye trauma, bi, indeterminate stageACan lead a claim
H4040X0Glaucoma secondary to eye inflammation, unsp eye, stage unspNoneCannot lead a claim
H4040X1Glaucoma secondary to eye inflammation, unsp eye, mild stageNoneCannot lead a claim
H4040X2Glaucoma secondary to eye inflam, unsp eye, moderate stageNoneCannot lead a claim
H4040X3Glaucoma secondary to eye inflam, unsp eye, severe stageNoneCannot lead a claim
H4040X4Glaucoma sec to eye inflam, unsp eye, indeterminate stageNoneCannot lead a claim
H4041X0Glaucoma secondary to eye inflam, right eye, stage unspACan lead a claim
H4041X1Glaucoma secondary to eye inflam, right eye, mild stageACan lead a claim
H4041X2Glaucoma secondary to eye inflam, right eye, moderate stageACan lead a claim
H4041X3Glaucoma secondary to eye inflam, right eye, severe stageACan lead a claim
H4041X4Glaucoma secondary to eye inflam, r eye, indeterminate stageACan lead a claim
H4042X0Glaucoma secondary to eye inflammation, left eye, stage unspACan lead a claim
H4042X1Glaucoma secondary to eye inflammation, left eye, mild stageACan lead a claim
H4042X2Glaucoma secondary to eye inflam, left eye, moderate stageACan lead a claim
H4042X3Glaucoma secondary to eye inflam, left eye, severe stageACan lead a claim
H4042X4Glaucoma sec to eye inflam, left eye, indeterminate stageACan lead a claim
H4043X0Glaucoma secondary to eye inflam, bilateral, stage unspACan lead a claim
H4043X1Glaucoma secondary to eye inflam, bilateral, mild stageACan lead a claim
H4043X2Glaucoma secondary to eye inflam, bilateral, moderate stageACan lead a claim
H4043X3Glaucoma secondary to eye inflam, bilateral, severe stageACan lead a claim
H4043X4Glaucoma secondary to eye inflam, bi, indeterminate stageACan lead a claim
H4050X0Glaucoma secondary to oth eye disord, unsp eye, stage unspNoneCannot lead a claim
H4050X1Glaucoma secondary to oth eye disord, unsp eye, mild stageNoneCannot lead a claim
H4050X2Glaucoma sec to oth eye disord, unsp eye, moderate stageNoneCannot lead a claim
H4050X3Glaucoma secondary to oth eye disord, unsp eye, severe stageNoneCannot lead a claim
H4050X4Glaucoma sec to oth eye disord, unsp eye, indeterminate stgNoneCannot lead a claim
H4051X0Glaucoma secondary to oth eye disord, right eye, stage unspACan lead a claim
H4051X1Glaucoma secondary to oth eye disord, right eye, mild stageACan lead a claim
H4051X2Glaucoma secondary to oth eye disord, r eye, moderate stageACan lead a claim
H4051X3Glaucoma secondary to oth eye disord, r eye, severe stageACan lead a claim
H4051X4Glaucoma sec to oth eye disord, r eye, indeterminate stageACan lead a claim
H4052X0Glaucoma secondary to oth eye disord, left eye, stage unspACan lead a claim
H4052X1Glaucoma secondary to oth eye disord, left eye, mild stageACan lead a claim
H4052X2Glaucoma sec to oth eye disord, left eye, moderate stageACan lead a claim
H4052X3Glaucoma secondary to oth eye disord, left eye, severe stageACan lead a claim
H4052X4Glaucoma sec to oth eye disord, l eye, indeterminate stageACan lead a claim
H4053X0Glaucoma secondary to oth eye disorders, bi, stage unspACan lead a claim
H4053X1Glaucoma secondary to oth eye disorders, bi, mild stageACan lead a claim
H4053X2Glaucoma secondary to oth eye disorders, bi, moderate stageACan lead a claim
H4053X3Glaucoma secondary to oth eye disorders, bi, severe stageACan lead a claim
H4053X4Glaucoma sec to oth eye disord, bi, indeterminate stageACan lead a claim
H4060X0Glaucoma secondary to drugs, unsp eye, stage unspecifiedNoneCannot lead a claim
H4060X1Glaucoma secondary to drugs, unspecified eye, mild stageNoneCannot lead a claim
H4060X2Glaucoma secondary to drugs, unspecified eye, moderate stageNoneCannot lead a claim
H4060X3Glaucoma secondary to drugs, unspecified eye, severe stageNoneCannot lead a claim
H4060X4Glaucoma secondary to drugs, unsp eye, indeterminate stageNoneCannot lead a claim
H4061X0Glaucoma secondary to drugs, right eye, stage unspecifiedACan lead a claim
H4061X1Glaucoma secondary to drugs, right eye, mild stageACan lead a claim
H4061X2Glaucoma secondary to drugs, right eye, moderate stageACan lead a claim
H4061X3Glaucoma secondary to drugs, right eye, severe stageACan lead a claim
H4061X4Glaucoma secondary to drugs, right eye, indeterminate stageACan lead a claim
H4062X0Glaucoma secondary to drugs, left eye, stage unspecifiedACan lead a claim
H4062X1Glaucoma secondary to drugs, left eye, mild stageACan lead a claim
H4062X2Glaucoma secondary to drugs, left eye, moderate stageACan lead a claim
H4062X3Glaucoma secondary to drugs, left eye, severe stageACan lead a claim
H4062X4Glaucoma secondary to drugs, left eye, indeterminate stageACan lead a claim
H4063X0Glaucoma secondary to drugs, bilateral, stage unspecifiedACan lead a claim
H4063X1Glaucoma secondary to drugs, bilateral, mild stageACan lead a claim
H4063X2Glaucoma secondary to drugs, bilateral, moderate stageACan lead a claim
H4063X3Glaucoma secondary to drugs, bilateral, severe stageACan lead a claim
H4063X4Glaucoma secondary to drugs, bilateral, indeterminate stageACan lead a claim
H40811Glaucoma w increased episcleral venous pressure, right eyeACan lead a claim
H40812Glaucoma with increased episcleral venous pressure, left eyeACan lead a claim
H40813Glaucoma w increased episcleral venous pressure, bilateralACan lead a claim
H40819Glaucoma with increased episcleral venous pressure, unsp eyeNoneCannot lead a claim
H40821Hypersecretion glaucoma, right eyeACan lead a claim
H40822Hypersecretion glaucoma, left eyeACan lead a claim
H40823Hypersecretion glaucoma, bilateralACan lead a claim
H40829Hypersecretion glaucoma, unspecified eyeNoneCannot lead a claim
H40831Aqueous misdirection, right eyeACan lead a claim
H40832Aqueous misdirection, left eyeACan lead a claim
H40833Aqueous misdirection, bilateralACan lead a claim
H40839Aqueous misdirection, unspecified eyeNoneCannot lead a claim
H40841Neovascular secondary angle closure glaucoma, right eyeACan lead a claim
H40842Neovascular secondary angle closure glaucoma, left eyeACan lead a claim
H40843Neovascular secondary angle closure glaucoma, bilateralACan lead a claim
H40849Neovascular secondary angle closure glaucoma, unspNoneCannot lead a claim
H4089Other specified glaucomaACan lead a claim
H409Unspecified glaucomaACan lead a claim
H42Glaucoma in diseases classified elsewhereNoneCannot lead a claim

Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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